Square nut: 5/16- 3 ea. 11/32 3 ea, 5/16-1 ea. And the newer: 1/4 square, 4 mm. Wartime Plomb is hard to find; here is a great pile.
Take the ones you need for your sets, and have trading material left over. The item "Vintage Plomb, Plumb 1/4 Drive Sockets Selection WWII Wartime Military 21 Pieces" is in sale since Thursday, November 16, 2017.
This item is in the category "Collectibles\Tools, Hardware & Locks\Tools\Mechanics". The seller is "sargentschultz0" and is located in El Cerrito, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Russian federation, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica.