Then there is this packet of literature from the Philatelic Crusaders for Peace.
This last one is fairly self explanatory.
Referring to the last cover, that would be a painful medical procedure. Do you need hobnail boots? As someone who went through school with the first name of Victor and a last name starting with "D", it kind of brings back memories.
regarding the first one here is a link which relates. http://patrimoni.gencat.cat/en/collection/art-and-civil-war The translation is "I will fight for your future"
Spanish Civil War ?
Yes, Spanish civil war.