As they are still in production the year you bought it is probably the best guess for it's age. There are schematic parts diagrams available from many sources on the internet. Just google Win or Rossi Model 1892.
The importer's mark and how it is finished can tell you a lot.
Garcia Corp. imported them fromm1968-1974.
Interarms became the North American importer in 1975 and continued to import them until the company closed in 1999. They were the first company to call them the "Puma".
The Rossi created subdivision of Braztec became the North American importer in 1999.
However, some of the former interarms employees started Legacy Sports International (LSI) in the former Interarms building and started importing the Rossi Model 92. The moved to Reno, but I don't recall the year that happened. If another member can add that information, the change in city will provide another pre-post point for dating an LSI imported Rossi 92.
LSI stopped importing Model 92s from Rossi in 2008 and instead started sourcing them from Armi Sport. To be honest Armi Sport makes a more authentic Model 92 clone that is slick out of the box - but costs nearly twice as much. (Don't confuse Armi San Marco Model 92s imported in the late 1990s with Armi Sport 92s, as the ASM Model 92s had really poor specs and even worse quality assurance.)
1999-2000 is also when Rossi re-tooled the Model 92 production line, using CNC machines. Quality was very good from 1968 through the early 1990s, but as the tooling became worn, the quality went down as the parts fit suffered. Rossi started over springing the various parts rather than properly hand fitting them.
However, the post 2000 Rossi 92's once again have good metal work, can be easily slicked up and are capable of good accuracy - although the ejector spring is still way to stiff.
Taurus acquired Rossi in 2009, and that's when the pig tail safety on the bolt appeared. They are still imported by Braztec and are still "Rossi" firearms, but that feature is convenient to give you a pre/post 2009 date.
Rossi is currently re-tooling and consolidating production facilities, which is why they are currently in short supply, but at least they are not making the mistake of letting the tooling wear to the point that the parts fit again suffers. And hopefully this will also address the spotty QA that has been a larger issue since Taurus acquired Rossi.
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