Dan, The Cressey Coat of Arms is described as: A Lion, rampant black, with two tails upon a silver shield and a crest of an eagle's head and wings above a ducal crown of gold with an old English C below.
Source: "Story of Your AncestorsCRESSEY286 Years in America"dated at Buxton, Maine,August 10, 1935 for the 21st Anniversary Reunion. Compiled by Ernest W. Cressey, Bar Mills, Maine. Published by Henry S. Cobb, Printer, 1935, Page 7.
I will e-mail you a scanned image of it. The quality is very poor but you can see the various parts.