Do any of you walking (riding?) Guzzi encyclopedias know a place I can find info on production numbers for various Guzzi models? I found some numbers for Centauros but I'd be interested to see more of the models and years.
There's a reason why nobody has jumped on this to answer your (seemingly) routine question. You'd think that the numbers would be known, but I wouldn't be surprised if Guzzi wasn't all that sure, themselves. You should not assume that every serial number in a series has a corresponding motorcycle attached to it. Anyway, here's a list of ranges of frame numbers from which you can extract something close to what you're after:
http://www.mgcn.nl/dameijer/moto-guzzi-framenumbersI think trying to find accurate numbers of a given model that have been imprted to the US is almost hopeless. The general answer for all models is "not very many."