I pride myself in being able to figure out the what, when and where about collectibles. I am stumped on this one and to me it should be (and probably is)
really simple. Pach Brothers stuff is really well known. Well, I am asking for help on this one. I am probably going to be embarrased when someone posts and maybe its the simple stuff that usually gets me?

I have ideas but I am unable to connect any dots?
Signature on the back that I would like other opinions on too?
Large Format Cabinet Photo. 15" x 11"
Thank you,
Shawn