George,
My name is Matt Heller. I'm a drummer who's also a stamp collector/postal historian. One of my sub-collections is "Drums on Covers", specifically manufacturers and distributors.
In trying to determine whether the Buescher Company also did drums among their band instruments, I came across your post/article on a Buescher drum, confirming for me that they did in fact make (or at least distribute) drums as well.
Thus, I bought the advertising envelope I was looking at and I thought you might find the ephemera interesting as well.
So, attached, you will find images of the front and back of an advertising envelope mailed in 1903.
Enjoy!
Matt Heller
