Postcards, letters, large envelopes (flats) and small packages can be sent using First-Class Mail®. This service, along with Priority Mail and Express Mail, is ideal for sending personal correspondence, handwritten or typewritten letters, and bills or statements of account. It may also be used for advertisements and lightweight merchandise. First-Class Mail prices are based on both the shape and weight of the item being mailed. For items weighing more than 13 ounces, use Priority Mail.
2009 USPS First-Class Mail Prices
by gordon r. schulz
On February 11, 2010 at 9:10 pm
postage price for 5 1/2″ x 5 1/2″ square envelope?
by gordon r. schulz
On February 11, 2010 at 9:18 pm
First class postage price for 5 1/2″ x 5 1/2″ square envelope with normal-weight card enclosed?