Check the price before sending out that lumpy wedding invitation or wonky-sized birthday card.
If you want the United States Postal Service to deliver an envelope that is square, larger than normal, not flat, or has an odd shape, you will need more than a 78-cent stamp.
USPS said on its website that a new stamp showing a green-winged luna moth with a white and yellow body and feathery brown antennae was released on Saturday and will be used for these non-machineable envelopes.
These envelopes need extra postage and special handling. The United States Postal Service currently charges a 49-cent premium for non-machineable envelopes. In addition to the 78-cent stamp, that is.
The luna moth stamp will remain valid indefinitely, just like a forever stamp, even if the non-machineable surcharge rate fluctuates.
According to USPS, the luna moth stamp was unveiled on Saturday at the Great American Stamp Show in Schaumburg, Illinois.
USPS art director Derry Noyes created the stamp based on a photograph by artist Joseph Scheer.
The luna moth stamp is available at post offices and at usps.com/shopstamps. It comes in panes of 20.