#4-1/2D envelopes are a special class of small envelopes. Most coin en...
#4-1/2D envelopes are a special class of small envelopes. Most coin envelopes cannot be mailed or used in automatic processes. #4-1/2D coin envelopes measure 3" x 4-7/8" and are constructed from tan / brown kraft paper.
Some uses of #4-1/2D coin envelopes include: