Yes, earlier than 1874. There may have been 3 serial number sequences. 1 for Georg as a subcontractor to S,D&G. 1 for H.A. Lindner pre-1891(or when he was forced to replace his >>Crown<< stamp w/ his >>HAL<< stamp and 1 for post >>Crown over Crossed Sidearms<<.

I do not think we are sure that H.A. continued Georg's serial numbers or not?

Cheers,

Raimey
rse