In contrast to the practice in the US occupation zone, the British distributed their Victorys to German police only on loan. So as soon as the state of Lower Saxony got the okay to go and purchase “real police pistols”, that is, 7,65mm semi-autos (they ultimately standardized on the PP), the Oldenburgers had to send all their S&W revolvers back to Hanover where they were inventoried and handed back to the British.

From there the guns joined the fate of most other BSRs: back to Blighty, sold to a surplus dealer, off to commercial proofing (crossed swords viewmark and NPs are part of that), and then either sale or more likely export. Yours went through that before 1955, as it appears to still have the old style of proofs.