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DECALS: no decals; painted blue DATING: Owner: "Sport model, 1889 on the seat tube and 17 under the bottom bracket" Serial Number 1982 1950s? ] art-bikes/e Bay: Swallow rondine lugs with no seat lug side slots; Headbadge is Olmo 'Lazy L' star logo; stamped steel dropouts; crimped on underside of chain stays from kickstand -- perhaps originally a city bike; bare frame Serial Number UT 6275 1945 Olmo [city bike, Industria Argentina] German via coventryeagle48/Flickr: Swallow rondine lugs with no seat lug side slots; chrome head lugs, fork crown, fork ends, stay ends and dropouts DECALS: Olmo in script on downtube; "Industria Argentina" under Olympic rings at top of downtube; "Campionato Italiano Diletta Iti 1942/43" on seat tube; Olympic rings with Olmo star decal at top of fork legs, and also at transition between paint and chrome on fork legs; OLMO oval on seat tube Serial Number A327 Late 1950s?

Olmo Dario Cattaneo: Swallow rondine lugs with no seat lug side slots; Campagnolo dropouts; chrome head lugs, fork crown, and rear dropout ORIGINAL PARTS: Campagnolo Gran Sport derailleurs and shifters; Magistroni three pin crankset DECALS: Head tube decal with Olmo 'Lazy L' star logo; Olmo Celle L chainguard decal on down tube; Olympic rings with Olmo star decal on seat tube DATING: The Campagnolo Gran Sport rear derailleur lost its cable housing adjuster screw around 1960. Olmo Professional pepperbelly/bikeforums.net: Swallow rondine lugs with seat lug side slot; open C Campagnolo dropouts; chrome head and seat lugs; chrome stay ends; chrome fork ORIGINAL PARTS: Olmo headset REPAINTED DATING: Open C Campagnolo dropouts date to the 1950s. Olmo city bike cicli2d/e Bay: Swallow rondine lugs with no seat lug side slot; internal routing of top tube brake cable; Agrati dropouts; chrome head lugs, fork crown, stay ends and dropouts ORIGINAL PARTS: Olmo city handlebars; Olmo seat post collar; Olmo crankarms; Universal brakes Serial Number C505 1958?

Magistroni cranks and alloy chain set 50, 47, and bottom bracket. Rear Fiamme red label rim with Campy Record (no record stamp) high flange hub. Ambrosia steel stem and alloy bar; Stem bolt with O. Sheffield Sprint 658 pedals." Campagnolo Open C shifters ["Non-original parts are Campy Record seat post, Araya BIA front rim with Sunshine high flange hub. Speedic saddle."] DECALS: OLMO in Red Oblong Outline on downtube, edged in bands; OLMO shield over red diamonds on chrome background with color band edges on seat tube; TIPO RONDINE at top of downtube; MADE IN ITALY and CAMBIO CAMPAGNOLO winged wheel at top of seat tube; Olympic rings with Olmo star decal at top of fork legs DATING: Campagnolo Record hubs introduced in 1958 Serial Number C895 1959 Olmo Professional Peter Wray: Swallow rondine lugs with seat lug side slot; open C Campagnolo rear dropouts; chrome head and seat lugs; chrome stay and fork ends; chrome fork crown; serial number on underside of bottom bracket ORIGINAL PARTS: Olmo headset and seat post clamp; Brooks saddle; Campagnolo seatpost; Magistroni crankset; Campagnolo Gran Sport derailleurs (rear derailleur has cable housing adjuster); Campagnolo high flange hubs with CAM 59 locknut; Campagnolo Open C quick release and shift levers; Balilla Brevettato sidepull brakes; Ambrosio Champion stem.

DECALS: OLMO in Red Oblong Outline on downtube, edged in bands; OLMO shield over red diamonds with color band edges on seat tube DATING: 1959 = CAM 59 locknut on hubs.

Olmo Professional Sparkee Bartee/Steel is Real FB: Swallow rondine lugs with no seat lug side slot; Campagnolo horizontal dropouts; chrome head lugs and seat lug ORIGINAL PARTS: Olmo headset and seat post clamp REPAINTED Serial Number C790 1958?

Olmo Professional Michael Levy/CR: Swallow rondine lugs with no seat lug side slot; Campagnolo dropouts; chrome head and seat lugs; chrome fork crown; chrome fork tips and seat and chain stay ends; chrome seat tube panel BRAZE-ONS: none ORIGINAL PARTS: Olmo headset and seat post clamp; Campagnolo Gran Sport derailleurs; Campagnolo seatpost and shifters; Magistroni 3-pin steel crankset; Balilla Brevattato sidepull brakes; Levy said "ca. OLMO I believe it is a Professional Regular Road Racing model." REPAINTED DECALS: [Not original but presumed to be modelled after original decals] OLMO in Red Oblong Outline on downtube, edged in bands; OLMO shield over red diamonds on chrome background with color band edges on seat tube; TIPO RONDINE at top of downtube; MADE IN ITALY and CAMBIO CAMPAGNOLO winged wheel at top of downtube; Olympic rings with Olmo star decal at top of fork legs Serial Number C871 1958 Olmo Professional Richard Longoria: Swallow rondine lugs with seat lug side slot; Chrome on seat lug, head lugs, stay and fork ends; "serial number stamped in the upper seat stay is C871" ORIGINAL PARTS: "Campy Gran Sport rear derailleur with cable adjuster.

Google Books Swallow rondine lugs with seat lug side slot; chrome head lugs and fork crown; chrome stay and fork ends; Campagnolo Cambio Corsa dropouts and fork ends BRAZE-ONS: top tube brake cable ORIGINAL PARTS: 4 speed Campagnolo Cambio Corsa; Campagnolo hubs; Nisi 36 hole rims; Magistroni Senior five pin crankset with 48t chainring; Olmo headset; Brooks B17 saddle; Balilla brakes; Silver blue paint DECALS: decal remnant on top of seat tube; otherwise, none DATING: book author says bike is 1948, from an Olmo team mechanic Serial Number 889 1946-1951? ] bg.legendary.bikes/e Bay: may not be an Olmo; seller does not say it is an Olmo in the listing and description; does not have swallow rondine lugs; chrome forks; Campagnolo Cambio Corsa dropouts and fork ends REPAINTED...

Olmo Professional romag.loren/e Bay: Swallow rondine lugs with no seat lug side slot; Campagnolo horizontal dropouts; chrome section on top tube; chrome stay ends; chrome fork ends; chrome bands on seat tube ORIGINAL PARTS: Campagnolo Gran Sport derailleurs (rear with cable adjuster), Open C Campagnolo shifters, Mafac brakes, Campagnolo hubs, Magistroni crankset, Campagnolo pedals, Brooks Campagnolo narrow rails saddle, Campagnolo seatpost, Ambrosio Champion handlebars, Ava stem, Campagnolo headset, Magistroni seat post clamp REPAINTED Serial Number C779 1958?A TIPO RONDINE decal may or may not appear on some older Olmo bikes, and refers to the Agrati AM lugs, with 'rondine' meaning 'swallow.' Some older Olmos have the ornate Agrati lugs which Emilio Bozzi sold as Brianza sportiva lugs; the accompanying Agrati rear dropouts are stamped with a scalloped back.However a few Olmos with Brianza lugs have Rondine decals, so go figure. Dating bikes by bike parts is not an exact science since dated parts could be used into following year(s).Original decals are present but very worn..." PARTIAL GOLD & RED CROMOVELATO PAINT: gold & red cromovelato on front of top tube, middle of seat tube, and top of fork blades ORIGINAL PARTS: OLMO seat post collar DECALS: OLMO shield on red and gold cromovelato panels with four color bands on seat tube; Olmo shield in color panel with bands on down tube; Olympic rings with Olmo star decal at top of fork legs above a gold cromovelato panel; Olympic rings with Olmo star decal on top of downtube; CAMBIO CAMPAGNOLO winged wheel on upper seat tube; OLMO shield on top and OLMO ovals on each side with gold and red cromovelato panels on front of top tube; MADE IN ITALY at top of seat tube DATING: Open C Campagnolo dropouts date to the 1950s. I am assuming this frame set is from the late 50s."; [don't know if lugs and fork are chrome, as in Professional Deluxe model, re: 1961 catalog] ORIGINAL PARTS: "Olmo branded steel seat post collar. Campagnolo Gran Sport drivetrain and Magistroni Cranks, first generation GS pedals and 2nd Generation GS headset with domed nut (many people here in the US thinks this is the first generation, but there are no "seals" on the bearing races). Olmo Professional bmx_warehouse1/e Bay: Swallow rondine lugs with no seat lug side slot; Campagnolo 1010 ends; chrome stay ends, fork ends, head lugs, seat tube panel, and front of top tube PARTIAL GOLD CROMOVELATO PAINT: gold cromovelato on front of top tube, middle of seat tube, and top of fork blades ORIGINAL PARTS: Magistroni bottom bracket DECALS: OLMO in Red Oblong Outline decals with OLMO on top tube; Olympic rings with Olmo star decal at top of fork legs and top of downtube; CAMBIO CAMPAGNOLO winged wheel on upper seat tube; OLMO shield on red and gold cromovelato panels with four color bands on seat tube; MADE IN ITALY at top of seat tube DATING: Has the Campagnolo Sport sprung pivot derailleur hole in the right rear dropout, which is 1952 Serial Number D622 1960?Has the Campagnolo Sport sprung pivot derailleur hole in the right rear dropout, which is 1952 Serial Number D437 1960 Olmo Professional Deluxe Rodolfo Aguirre: Campagnolo drop outs ORIGINAL PARTS: "... Olmo Professional Felix Chiu: Swallow rondine lugs with no seat lug side slot; Campagnolo 1010 ends; chrome stay ends, fork ends, head lugs, and seat tube panel ORIGINAL PARTS: Gran Sport front and rear derailleur with cable adjuster; OLMO headset and seat post collar; Universal Extra BREV 453949 brakes; Cottered crankset, likely Magistroni; Ambrosio Champion handlebars and stem; Ideale 39 saddle DECALS: OLMO in Red Oblong Outline decals on downtube; Olympic rings with Olmo star decal at top of fork legs; TIPO RONDINE at top of downtube; CAMBIO CAMPAGNOLO winged wheel at top of seat tube; OLMO shield on chrome panel with four color bands on seat tube; MADE IN ITALY decal near top of down tube; Reynolds 531 decal on seat tube (false decal? ) DATING: "My 58ish has the serial number D622 stamped at the back of the seat-lug." Campagnolo Gran Sport rear derailleur lost its cable adjuster around 1960. Olmo Professional joann746/e Bay: Swallow rondine lugs with no seat lug side slot; Campagnolo 1010 dropouts; chrome stay ends, fork ends, head lugs, and seat tube panel ORIGINAL PARTS: Gran Sport front and rear derailleur with cable adjuster; Universal brakes; Cottered crankset, likely Magistroni; Sheffield Sprint pedals; Italia saddle; Fiamme blue label rims; Falck tubing DECALS: OLMO in Red Oblong Outline decals on downtube; Olympic rings with Olmo star decal at top of fork legs; TIPO RONDINE at top of downtube; MADE IN ITALY decal near top of down tube; CAMBIO CAMPAGNOLO winged wheel at top of seat tube; OLMO shield on chrome panel with four color bands on seat tube Serial Number D666 1960?

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Later Olmos with date-able elements are actively added, as well as pre-1978 Olmos. IT IS NOT CLEAR THAT OLMO FOLLOWED A LINEAR ALPHANUMERIC OR NUMERIC SERIAL NUMBERING SCHEME. Numeric serial numbers were used from the late 1970s, and then discontinued. Serial numbers are stamped on the seat lug on older bikes, or on the bottom bracket underside on later bikes (sometimes matched by a serial number on the fork steerer tube). after the year of an Olmo in this Registry designates uncertainty about its year or range of years.

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