Hey Chris
Yes, that envelope is one I picked up along the way. I can't say I have seen too many Breisch Williams ads or ad pieces. Of course some of their cards have the scarce Breisch Williams purple overprint (as seen below) but there just isn't much out there. Also, some folks think the type 2 cards Tenney below) were cut off an advertisement or box. And lastly, I think it's Brian McQueen who came up with something, fact or theory, that might have related Breisch to Oxford Confectionery.
