The Alfa museum reply (at least when the service was free) also gave the date when it was sold. For mine, it was sold December 28, 1973. When I lookup a 1973 calendar online, the 23rd was a Sunday (seems a bit odd, but perhaps production lines ran over weekends or at least some parts of the operation?) and the 28th was a Friday with Christmas in between. I was lucky enough to make indirect contact (through a work contact at a university in Italy) with the widow of the original owner of mine years ago. This sold date fits her memory of them both being attracted to this color and buying as soon as one became available and then keeping it for 25 years.Thanks for that datapoint, it is interesting - our cars are only 1985 cars apart. I have the original "libretto" in front of me, there is no date of construction but the original registration is 11/26/1973. That means mine was built and sold almost immediately... not knowing the production numbers by day makes it hard to discern. I guess I'll pay the 30 bucks :laugh2:
I did find another reply from Marco Fazio where I had him run 3 other chassis numbers to see if I could learn more from those. Those were:
AR*3335317 (25 after mine), built on April 29, 1974
AR*3335342 (50 after mine), built on December 28, 1973
AR*3336292 (1000 after mine), built on January 16, 1974
The first one especially indicates that close numbers don't necessarily imply close build dates. I probably would have given him 100 numbers to lookup, although I thought 4 total with mine was a good total to avoid being a pest. I was appreciative he did lookup a few more that clearly weren't mine. I didn't have him lookup any that were earlier than mine since my goal was to try to see how many were produced after mine in calendar year 1973.