20E503  up for sale is a new Armstrong professional hand wrench open end box combination 12 MM x 12 MM , nice quality wrench new new from our surplus warehouse , comes in factory bag sealed we opened one for the photos shipped in  factory packaging , see our store for more tools and other surplus items , 
Also covered under military NSN 5120-01-054-7130 and armstrong number 52-212 , new wrench as shown .