Hi everyone. I picked these castings up recently and thought i would show them here in case somebody recognises them . The smaller of them is about 2-1/2 inch high (63mm) approx has 21 cast on one side and B on the other , seller states it is a DB 21 Diesel . The bigger one has no markings , is about 3 inches high ( 75mm) and has a lower deck height in relation to the exhaust port so i would guess it is for a glow engine design . If anyone recognises them let me know ! Thanks . XD.