ST-4626C Japan

ST-4626C: Japan

Diameter 10" (254mm)

(ink stamp) 36000LB M-E / 18000LB TEST / / NGK / JAPAN / "year"

{NGK}

Picture courtesy Anonymous

Diameter 10" (254mm)

(ink stamp) 36000LB / / NGK / JAPAN / "year"

{NGK}

Picture courtesy Anonymous

Also reported in this style:

(sand blast) 30000 LB. M&E / 15000 LB. TEST / LAPP "year" USA {Lapp USA} -- Dark Gray glaze
(sand blast) 36000 LB. M&E / 18000 LB. TEST / LAPP "year" USA // LOT NO. 1 {Lapp USA} -- Cobalt Blue glaze

Original ST number assignment by Raven Kotlarsky and Steve Coffman