Like Richie says, the earlier Italian bikes don't have serial numbers. Some of the early GC's have dates on them. Specials and before are not numbered or dated. You should also keep track of the size and letter stamp on the older frames. Very few bikes will be built by a single builder; normally the whole job shop built the contract bikes. I'm sure the outfits were quite small, probably between 2 and 5 workers at any given place, just as a guess.
I'd be happy to add to your registery. I have 3 classic Masis of my own and see a considerable number every year. I applaud your guys' efforts; I don't have time to undertake such a project myself, but it needs to be done. Thanks!
La Mesa, CA
To all of those Masi collectors out in "CR" land. I have discussed with Greg Fletcher (Masi Lore fame) about creating a Masi registry, i.e. serial numbers, size owners etc. He thought this might be a good Idea so that we could track the heritage of our beloved frames. So that being the idea I would like to put it into process. We will put this in spread sheet form and put it on the website. What my interest was connecting the serial numbers to the date manufactured and who specifically the frame builder was at that time.
If you think this is a nice idea please send your info to me and we will begin to catalogue the information. If there are any other ideas out in cyberspace let me know.
PS: That means you M. Schmidt.
Jack (Giacomo) Gabus
Laguna Beach, CA