One penny stamp, cropped from proof sheet, removed proof number.  The design consists of a mantle; <a href="https://en.wikipedia.org/wiki/St_Edward%27s_Crown" class="extiw" title="w:St Edward's Crown">St Edward's Crown</a> encircled by the <a href="https://en.wikipedia.org/wiki/Order_of_the_Garter" class="extiw" title="w:Order of the Garter">Order of the Garter</a>; and a scepter and sword. At top is the word AMERICA; at bottom the denomination ONE PENNY.
not listed
1765
<a href="//commons.wikimedia.org/wiki/File:Proof_sheet_of_one_penny_stamps_Stamp_Act_1765.jpg" title="File:Proof sheet of one penny stamps Stamp Act 1765.jpg">File:Proof sheet of one penny stamps Stamp Act 1765.jpg</a>