Set of 2:  Vintage Peanuts SNOOPY: Ceramic Bell Christmas Ornaments Dated 1975.   

1) Snoopy and Woodstock lying on Snoopy's doghouse.  Green holly leaves around the edge of the bell.  Back:  "Merry Christmas 1975".  

2) Snoopy dressed as Santa and Woodstock holding a gift.  Green holly leaves around the edge of bell.   Back:   Merry Christmas 1975" 

Both are 2 5/8 diameter around.

Excellent condition and from my personal collection.