I have a stack of these about 1.5 feet thick, they are all dated from back in the 40's. I have attached a few sample pics. Ordnance drawings/ blueprints include, artillery, bombs, rockets, grenades, landmines, torpedoes, etc. what is a value on a collection like this.
Edited by robinb, 19 September 2017 - 04:06 PM.