I have one of those revolvers, as well, given to me by a friend. Not sure of the year of manufacture, but they are interesting.
The ammo is very likely from the 1930s, or the 1940s. Not sure when Winchester moved away from that box style, but the "Staynless" term was adopted very late in the 1920s.
It's also interesting that they're nickel plated cases. Never seen that before in this time frame. That may mean later, rather than earlier, loading. Pity the box is chewed up.
The corrosion on the bullets is simple lead oxide. Make sure to wash your hands after handling them, but it doesn't present a problem in firing the ammo.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.
Last edited by Mike Irwin; January 12, 2013 at 08:45 AM.