2 5/8" X 2 3/4" (66mm X 68mm)

(front skirt) Л.О. (upside down) 

Picture courtesy Rudy Gargioni

2 1/4" X 2 5/8" (56mm X 68mm)

(crown) HLM.

Picture courtesy Tom Katonak

2 1/4" X 2 5/8" (56mm X 68mm)

(skirt) Logo (Russian imperial eagle)

      МАЛЬЦОВСКОЕ

Picture courtesy Tom Katonak

2 3/8" X 2 3/4" (58mm X 72mm)

No markings

Picture courtesy Earnest Griffin

2 3/8" X 2 5/8" (58mm X 69mm)

No markings

{Nieman notch}

Picture courtesy Bob Berry

2 1/4" X 2 5/8" (56mm X 68mm)

No markings

Picture courtesy Earnest Griffin

2 3/8" X 2 1/2" (62mm X 65mm)

No markings

Picture courtesy Earnest Griffin

   2 1/4" X 2 5/8" (56mm X 68mm) 

(skirt) Logo (Russian imperial eagle)

         МАЛЬЦОВСКОЕ

Picture courtesy Rudy Gargioni