First class forever postage stamps and post card stamps bought at USPS can be verified as authentic by post office discounted 25% from post office price in rolls of 100. First class forever postage stamps rolls of 100 discounted to $60.00 per roll from $78.00 per roll of 100 and postcard stamps rolls of 100 discounted to $46.00 a roll from $62.00 per roll all stamps in sealed rolls.price is firm.