Pair of signed lithographs The Zoo and untitled numbered 1/20 8/20

  

Pair of signed lithographs "The Zoo" and untitled numbered 1/20 8/20. 16 3/4" x 23 7/8" framed. Pair of framed lithographs signed in lower right corner one titled "The Zoo" numbered 1/20 and the other untitled and numbered 8/20.