There are several "Australian" contracts and value can depend on which one and where the Australian Police assigned the guns. Not all Australian Police NM#3s were cut for shoulder stocks and not all Australian contract guns ( shipped through S&Ws agents in Melbourne) wound up going to the Police. Get a copy of Max Slee's "Service Arms of the South Australian Police" for info. on these guns found nowhere else. Having said all that, the refinishing detracts from collector value to some degree, but if it's a factory "restoration " I would estimate a reduction of only about one third in value vs. original condition values. The stocks are numbered under the wood, by the factory and Roy Jinks says these are not serial numbers, so we can probably just refer to those numbers a assembly numbers, however they were kept track of by production logs. The leather holsters for the guns & stocks were made by the Australians, not S&W, in at least two different styles. One ship carrying a shipment of Australian contract guns sank off the coast of Australia and the guns were presumed lost, however guns on the shipping manifest, listed by serial number, have subsequently shown up in Aussie collections, so apparently there was some salvage by enterprising Aussies living on the east coast. Ed.