That second one there sounds like a Wild Turkey Federation commemorative, or something of the like. It also appears that you have #499 out of 500 that were made, so I'd think twice about shooting it.
Old Auto-5s are increasing in value, as they have been discontinued. A commemorative example would probably be even more valuable. Just for reference, I saw an old beat-up Sweet-Sixteen selling for about $750 at a gun shop.
For what it's worth, my dad has a pair of old Belgian Auto-5s, one from around 1950 (Sweet-Sixteen, I believe), and the other from the early '60s (12ga). He has shot modern 2 3/4 shells out of the 12ga with no problems whatsoever.
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Bulldawg: NRA, GOA, TSRA, Shiner Bock Connoisseur.
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