Welcome to the forum KCrow, great to heve you here.

I can't help you with any data for your Boss, but what a beautiful little double. The smaller rifles, particullarly the hammer rifles, are something special. Nice rifle. Thanks for posting it.

I hope you will find the info you are after, and I'm sure, with the knowlage that is floating around here on this site, you will find it.

Best regards

Alex

alexbeer.com