This is a rare collection of "Wonders of the Animal Kingdom" packets.  They all appear to be unopened, although due to their age some of the glue has let loose.  Included in this collection is 2 of the number 1 packets, packets numbers 3-5, numbers 7-12, numbers 17-21 and an extra set that has been opened.  All of the packets measure 3.5" X 2", except for number 21 which measures 8.25" X 2".