Could any of you poster collectors please tell me what the correct dimensions should be for authentic (unframed) examples of: "Cutaway View of the 38 Military and Police Revolver" and "Shooting Range Instruction Chart" (either 1st or 2nd type)? I have been looking for both, but am finding multiple dimensions described for each poster type, though all are represented for sale as “originals" and/or "not reproductions?"

Precise dimensions of any S&W or other company printed advertising material will vary somewhat depending on the period it was printed! All the dimensions you have seen in ads may be correct. or equally incorrect. Not everyone measures things the same way, even with the same measuring instrument!

That I didn't realize, and makes perfect sense - Thank you Sir!

- Eric