So I picked up a "Roger Competition" today. The paint job is immaculate. It is a cool green that you might find on a bottle fly. The bike has a lot of really neat and unusual parts and decals.
The bike says on the chainstay "designed by Cosme Saavedra." Remigo Saavedra placed 15th in the 1928 olympics: Olympic Road Championship 1928 - CyclingFever - The International Cycling Social Network - Get the Cycling fever!. There is also a Cosme Saavedra who rode in the 1924 and 28 Olympics: Cosme Saavedra - Wikipedia, the free encyclopedia. This may be the same person. In any case Cosme is from Mendoza where the best wine in the country is grown. The NW of Argentina is beautiful and mountainous and no doubt a great place for an aspiring racer to learn his trade. In any case the bike has a bunch of olympic type decals including the headtube badge.
The frame has some neat decals. The tubing sticker says canos 538 trafilados and the sticker looks like a kind of Reynolds 531 knock off. Also on the seat post is a decal saying made in Argentina and handmade. The seatpost diameter is 26.4 and the tubing is seamless. The seatpost is a campy NR knock off with the saavedra name. The cranks have saavedra etched on them as well.
The derailleurs are a campy knock off called cambato gran sport. Disraeli gears has a discussion of the derailleur: Gambato Gran Sport derailleur. It dates from the mid-1970s but notes that it is a copy of the 1953 gran sport.
The hubs are Pelissiers and they are in beautiful shape (as are all the parts). Here is a velo orange blog post on Pelissier hubs: The Velo ORANGE Blog: Pelissier and his Hubs ? The rims do not have a name but they look like pretty decent alloy rims with an eyelet. They are 27 inch and the tires are made in Argentina; the tubes are schrader.
The freewheel says nomacca. I have no idea what kind of freewheel remover it will take. The crank has 52-45 rings and the freewheel is 13-28. The brakes, bar, and stem are "catalano."
It is an unusual bike esp. given that I picked it up in my fair city of Des Moines, Iowa.