left - right 3 1/2 X 2 5/8 in grooved base 3 3/4 X 2 5/8 CPR embossed beveled base 4 x 2 3/4 CPR inkstamp beveled base 4 X 3 inner skirt 4 1/2 X 3 1/4 inner skirt Except for the first one, all were found locally on a Canadian Pacific line.