Flare Gun Forum

I am writing on an article about the Leuchtpistole (Model Walther). The manufacturer Berlin-Lübecker Maschinenfabrik used the code "S/237" in 1937-38-39, until it changed in 1939 to "237".
A rumour has been circulating that an intermediate code existed in use for a short time; "S237". Can anyone confirm this?

And a follow-up question: Has anyone seen a duv 40 marked Leuchtpistole?

Hello, my earliest S/237 is 1937 serial # 611
In 1939 they switched to 237
my 1939 dated S/237 is serial # 882
my earliest 1939 237 is serial # 9122
The last date with 237 that I have is 1940. I have not seen a 237 with a 1941 date.
In 1941 I believe they changed the code to duv. My earliest duv is 1941 serial # 867

These are all for sale, as is the rest of my collection.

Thanks! That backs up my theory that the "S237" and the duv 40 doesn't exist. Until further proof surfaces...

How rare are the 237 marked flare guns? I have a 1940 example