I have a brick from a farm in Okarchee, OK(actually it looks like a cinder block but made out of brick material. It was from a wash house attached to a house and some of the "bricks" were imprinted with ACME TILE and mine was marked with U.B. oc T.C.~. This building was built prior to 1918 when my grandfather bought the farm. I saw similar "bricks" in the devastation of the OKC bombing on display at the memorial in a building that was built in 1923. Your search area did not pull any info. Does anyone know of these markings?