Hi all. I recently bought these denarii for what I believe was a good price from a well established ebay seller. Im relatively new to ancients but have been meaning to pick up a couple denarii for awhile. Per the seller these came from a large collection. Im hoping some people here can weigh and and confirm to me if appear authentic. I have no reason to question the seller, im just a little paranoid. Coin 1: Caracalla denarius, weight 3.22 grams--https://imgur.com/a/CI1yxCI Coin 2: Hadrian denarius, weight 2.747 grams--https://imgur.com/a/1qyHlP7 Coin 3: Severus Alexander denarius (fourree?), weight 2.17 grams--https://imgur.com/a/iPclhgX Any and all insight/opinions appreciated!