These two new markings on WW2 gas detection brassards were sent to me by different collectors on the same day. Jason Claire sent me the photo of his green brassard with the marking “5/44 1 SL/DE” and Pierre Hardouin of his dark brown brassard in new condition, with the marking “2/40 1 S LTD D“. The latter is similar to another marking in the list in my article on gas detection brassards.
I still have no explanation for the different colors, and the dark brown seems to be an early type, judging by the date (1940). So if anyone knows more about this, please comment or Send me an e-mail.