I can't say for sure. Never researched it. I thought either West Hartford or West Haven, CT or Winter Haven FL. For the record, I own the Thompson M1 currently on Gunbroker. I am the individual owner and not a dealer so unfortunately I'm not quite as knowledgeable about transfers as many on here. As the add states, the gun is on a form 4 to my trust and I was under the impression that it could only be transferred on a form 4. I would transfer it to a C&R but to be perfectly honest, I've never done one and didn't know the details involved, but would be grateful if someone can educate me on the process. However, It was purchased through Rock Island Auctions six years ago and I had to look up their original description to realize that it qualified for a C&R. Its also helpful to hear the details about the A1 XX-out. I will say that it's an awesome gun and to be honest I hate to see it go. Just ran it two months ago and it works flawlessly. I've never had a jam or misfire since I've owned it. Welcome and thanks for the info. So can you tell us what the WHPD indicates?