Hi.............the only KT that I'm aware of is KTK, Knowles, Taylor & Knowles, an early Ohio utilitarian china ware. Perhaps yours is of later? The KT could be a maker's mark from a school or other ceramic class? Only a guess here.......
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enjoy.............. .......Tim
"If we ever forget that we're one nation under God, then we will be a = nation gone under." - Ronald Reagan
