2" X 2 3/4" (49mm X 67mm)

No markings

{Koster's Pottery}

Picture courtesy Bob Scafe

2 1/8" X 2 7/8" (52mm X 70mm)

No markings

{Koster's Pottery}

Picture courtesy Byron Smith

2 1/8" X 2 3/4" (50mm X 66mm)

No markings

{Koster's Pottery}

Picture courtesy Byron Smith

2 1/8" X 2 3/4" (51mm X 66mm)

No markings (trimmer varient)

{Koster's Pottery}

Picture courtesy Byron Smith