Great idea Slash ! And thanks for posting these extremely rare Behälters !
I think with millions of Rg34s made there must be many rarities or unusual parts, especially towards the end of the war due to the need to use everything they had on hand.
No doubt, Gustav Appel assembled the late CNX kits using leftover parts from Mundlos and Hawig firms, and these double marked pieces seems to be a good evidence of it. I am the opinion that the CNX and cnx kits without the presence of Waffenamt were the last ones to be manufactured. The elimination of the Waffenamt on the Behälter seems to be made at late 1944 in general, but seems that Gustav Appel firm were the last one to delete it, and continued to marking their Rg34s with the Waffenamt in early 1945 until supress it sometime that year. Evidence of this is the presence of the acceptance marking on many of the CNX kits and the fact that the cnx kits without Waffenamt are scarce.
I enclose pictures of an unmarked Rg34 manufactured by Gustav Appel. The Waffenamt WaA20 on the main lid, at right, is barely visible. This dark grey Behälter shows the typical Gustav Appel manufacturing characteristics and with a close exmination can be determine that was manufactured at towards late war period.
Antoni