The picture shows a view of this Old Kundo Black Forest 400 Day Clock Key With Advertising Tag. The key and tag are not dated but they are old. The tag is made of a foil paper and the other side reads the same. It is marked on the two sides as follows:
OVER 50 YEARS ORIGINAL BLACK FOREST KUNDO ANNIVERSARY 400 DAY CLOCK (Kundo logo) TRADE MARK
The key is made of steel. To judge the sizes the key measures 2-5/8'' long. The key and tag are in excellent condition as pictured. The tag has a crease and some wear. The key has some light surface rusting that can be easily cleaned off if desired.