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7,7cm FK.96 Case Headstamps

peregrinvs

Well-Known Member
Hi,

It’s an October 1917 dated strengthened case made with 67% copper brass, but what do the ‘G 233’ and ‘HL 25’ markings mean?

Thanks,
Mark
 

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Thanks for that. So it would appear to be:

G - Württembergische Metallwarenfabrik, Geislingen
233 - Batch number
HL - Hauptlaboratorium (Ingolstadt)
25 - Inspector number (?)
 
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