Ask for invoice before you pay if you qualify for combined shipping per below. If you pay immediate, I will not be able to combines shipping for you.
If you buy 1 card, shipping is 1.59 (covers postage and materials).
If you buy 2 cards, shipping is 1.59+.50.
If you buy 3 cards, shipping is 1.59 +.50+.50
If you buy 4 cards, shipping is 1.59+.50+.50+.50
If you buy 5 cards or more, shipping will be flat rate of 5.25.
(I cannot ship more than 4 cards in ebay letter format, so will need to ship in bubble pack which carry's cost of 5.25 for rate+materials)
As always, reach out if any questions.