7" - 6 1/2" - 5 1/2" X 8 7/8"

(178mm - 165mm - 140 mm X 225mm)

(skirt inkstamp) ШФ 20Г1 1003

{JSC Yuzhnouralsky}

Picture courtesy Doug Rusher

6 7/8" - 6 1/8" - 5 5/8" X 8 7/8"

(175mm - 156mm - 143 mm X 223mm)

(skirt inkstamp) E27 22

Picture courtesy Darryl Wagner