and now, for something I've never seen before, but cool stuff from WW2 military bases, the "Large Letter Post Cards" of the Carl Teich company

on the above, you'll see a lot of cool tiny details if you click on it and make it get full size on your screen

if you like these and want to see a lot more, the website I found these on has 6 galleries, and probably about 100 posted, of the 2200 that guy owns. The other 5 galleries are city and state names, only gallery 6 were of military bases

http://poulwebb.blogspot.com/2015/02/large-letter-postcards-part-6.html