To start with dump Harrison and the Larson books. Too much bad information in them both. The WRA/GHD ended with the change to the type 3 stock. It was dropped and just the crossed cannon stamp was used and that was the around March 1944. The box was dropped with the start of the type 2 stock about late spring early summer 1943 roughly around the 1110000 mark and only the WRA/GHD unboxed was used.