The letters >>AF<< surmounted by a Crown are those of Francotte but someone attempted to mask them.

No, this is an all Suhl gun because from late 1923 to early 1924 Suhl used a ledger number and you cannot use that ledger stamp to differentiate between the two during this period. Suhl may have been using the Z-M proof facility? The Sauer serialized tube plus the 1924 Block Nitro stamp all support this.

Serbus,

Raimey
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