Truly a OOAK (one of a kind) brick. Hard to read all the writing, but it is Matches Metal Co. Center is the diamond logo with MATCHLESS, Bottom, Chicago I’ll and ….? MASS. Looks like it was hand pressed into a mold to create the brick. Measures 7” long, 2 1/4” tall and 2 1/2” deep. Lots of pictures to help describe.