piet, the front suffix is totally differnet than the proof marks on the right. At the time, every 10,000 lugers were made, a new suffix was added, so;
serial number 1 sn 2 sn 3 .... sn 9999 sn 1a sn 2a .... 9999a up to sn 9999e sn 1f sn 2f up to your numbers 248f etc.
Ed
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