Here are a dozen varieties of U-1154 from Australia as follows - Note two additional! All in good condition -- actual postage additional (flat rate boxes make this reasonable) -- $8 each, or take the remaining 10 for $40

Top row - left to right:

Top inkstamp - R.F. LTD / 43 (Robert Fowler)

Top inkstamp - FB / 46 (Fire Brick)

Top inkstamp - WP / 51 (Wade Potteries)

Top incuse - DAULTON / 51

Top inkstamp - FOWLER / 19 JUN 1968

Bottom row, left to right

No markings, heavier style

Dome inkstamp - NZI in a circle / 8-79 (New Zealand Insulators) - (SOLD)

Skirt inkstanp -- logo / 55 / MADE IN JAPAN

Dome inkstamp -- KP / 59 (Koesters Pottery)

Skirt inkstamp -- MADE IN JAPAN / SHOFU 'in a diamond" / 48 (SOLD)

Skirt inkstamp -- 48 / national / MADE IN JAPAN

Skirt inkstamp -- DIA in a map of Australia / JUL 81 / 1257