For anybody looking for a nice cambio corsa bike, one of my friends in Italy is selling a Learco Guerra on Italian Ebay:
The description in Italian translates to read: 1940's Learco Guerra racing bike. Campagnolo Cambio Corsa derailleur. 57cm C/C seat tube x 58cm C/C top tube. As per the photos. The frame has been repainted and the brightwork rechromed by the previous owner. The enamel head badge has been replaced with a decal. Hugo Koblet won the 1950 Giro d'Italia on a Learco Guerra bike while racing for the Guerra team which was directed by Learco Guerra himself Koblet rode for Guerra from '48-'53. If you have any questions, ask away, an answer will be given to all.
The seller is capable and is well able to pack the bike for safe shipment.
Steven Maasland
Moorestown, NJ
USA