This lot consists of a vintage, factory-sealed 50-round box of Winchester .22 Winchester Rimfire (WRF) "Lesmok" rifle cartridges, specifically marked for use in the Winchester Model 90 rifle. The .22 WRF cartridge was introduced in 1890 alongside the Model 1890 pump-action rifle and represents one of Winchester's early proprietary rimfire developments, offering improved performance over the earlier .22 Long and .22 Short cartridges. The "Lesmok" designation refers to Winchester’s early semi-smokeless powder formulation, bridging the transition from black powder to modern smokeless ammunition and making these cartridges particularly desirable among collectors of early rimfire ammunition.

The two-piece box retains its original labeling, clearly marked ".22 Winchester Rim Fire" and "For Winchester Model 90 Rifle," along with "Lesmok Powder". The packaging shows very light wear, remaining structurally solid and fully legible. The box is sealed in a non-original protective plastic wrap, preserving the integrity of the contents and enhancing its collector appeal.

Because the box remains sealed, the cartridges inside are presumed to be complete and consistent with factory packaging, with condition expected to be well-preserved relative to age. This is a scarce and desirable example of early Winchester rimfire ammunition tied directly to one of their most iconic pump-action rifles, offering strong appeal for ammunition collectors and Winchester enthusiasts alike.