This is interesting, Iv'e never seen one of these. Right now it's at $510, with a little less than 24 hours left.
h ttp://www.ebay.com/itm/RARE-western-Electric-Bell-SHMOO-Telephone-1959-Trial-Model-F53273-BEIGE-TAN-/121640745861?pt=LH_DefaultDomain_0&hash=item1c525a7b85
http://www.ebay.com/itm/RARE-western-Electric-Bell-SHMOO-Telephone-1959-Trial-Model-F53273-BEIGE-TAN-/121640745861
http://www.classicrotaryphones.com/forum/index.php?topic=14305.0