In the Golden Chain of Friendship Regard Me as a "Missing Link"

Front:
DARWIN 994. How TRUE! How TRUE! COPYRIGHT 1909 BY HH.TAMMEN IN THE GOLDEN CHAIN OF FRIENDSHIP REGARD ME AS A MISSING LINK!

Back:
POST ARD THIS SPACE CAN BE USED FOR A WRITTEN MESSAGE, USING ONE-CENT STAMP PLACE STAMI TWO CENTS