Hopalong Cassidy Poster/Window Card Help

tinperimeter

This poster has been in this frame on a wall in our home for decades. It's dated 1936, for the film "3 on the Trail."

I've been told it's a trimmed Window Card, since it currently measures about 14 1/4" by 17 1/4".

My question is where can I research this beyond Google Lens? I can't seem to find a match to this version of the
poster art. Is it rare?

All input appreciated. Thanks!

Charlie

Appears to be scarce - I can't find a copy of it.  As to value, not too sure on that either since it is a first release.