Hello Lyle:
Gosh, we have not seen you around these parts in years! It is nice to have you back. I hope that you stick around.
On the Coast Guard guns, you wondered about the quantity shipped to it during WW2. I don't know the total and I am sure that it would take considerable digging to find all of the invoices.
However, I think that while the Coast Guard shipped guns can be considered scarce there were more than a few shipped. Looking at the S&WCA's Victory Model Database a quick perusal showed that there are 50 serial numbers listed therein as having shipped to the USCG. They shipped on at least 5 different dates and the serials are spread over a considerable range. Most shipped to Curtis Bay, MD but some shipped to the USCG at the 7th Naval District in Miami and others to a location in New Jersey. I could locate no USCG shipments in the Pre-victory Database.
I hope that sheds some additional light on the subject.
Regards,
Charlie