3" X 4" (75mm X 100mm)

No markings (niemen notch)

{found in Ukraine}

Picture courtesy Tom Katonak

3" X 4" (77mm X 102mm)

No markings (niemen notch)

Picture courtesy Bob Berry

3" X 3 7/8" (77mm X 98mm)

No markings

Picture courtesy Earnest Griffin

3" X 4 1/8" (77mm X 105mm)

No markings

Picture courtesy Earnest Griffin