3 1/2" X 5" (86mm X 127mm)

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No markings

Picture courtesy Bob Berry

3 1/2" X 5" (86mm X 127mm)

(upper skirt) FULLER & LANGDON PATENT

Picture courtesy Gene Kingsley

3 1/2" X 5" (86mm X 127mm)

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No markings

Picture courtesy Gene Kingsley

3 3/8" X 5" (84mm X 124mm)

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No markings

Picture courtesy Russ Firth

3 1/4" X 5" (82mm X 128mm)

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No markings

Picture courtesy Russ Firth