2 1/4" X 3 3/4" (58mm X 95mm)

(skirt inkstamp)

{Nilcrom Porcelain Australia}

Picture courtesy Bob Berry

2 1/4" X 3 3/4" (58mm X 95mm)

(crown incuse) KP / 72

{Koster Potteries}

Picture courtesy Bob Berry

2 1/4" X 3 3/4" (58mm X 95mm)

(dome inkstamp) WP / 51

{Welland Pottery}

Picture courtesy Bob Berry

2 1/4" X 3 3/4" (58mm X 95mm)

(dome inkstamp) R.F. LTD / 59

{Robert Fowler Limited}

Picture courtesy Bob Scafe

2 1/4" X 3 3/4" (58mm X 95mm)

(dome inkstamp) FB / 51

{Fire Brick}

Picture courtesy Bob Berry