One of these pieces is a red large penguin nose to nose with a natural smaller penguin.  This is Nr. 827/121 and labeled as 4.4 cm.  They are about 1 ¾ by 1 ½ inches.  The other piece is a large natural penguin with an inset small red penguin.  This is Nr. 837/12 and is listed as 3.3 cm.  They are about 2 ¼ by ¾ inches.  Both pieces were made in Germany and are in matchbox type boxes.