Typically at this price range and date you see them slabbed, but it is a nice matching set regardless! https://www.ebay.com/itm/1899-USA-SILVER-CHOICE-CAMEO-PROOF-6-COIN-ORIGINAL-PROOF-SET-IN-CUSTOM-CASE/333088076086?hash=item4d8d98b136:g:Ic4AAOSwPjNccFPF
Too bad every single one of them has been harshly cleaned and polished, and several of them have unattractive hazy toning from being in that holder. Even with those poor pictures, you can see multitudes of hairlines on several of the coins. A couple of the coins may have cameo contrast, but most of them would not make cameo. And that price! Ouch. Compare that to an original, problem free, attractively toned and certified 1899 proof set that sold on Heritage a few years ago for a significantly lower price: https://coins.ha.com/itm/early-proof-sets/1899-six-piece-proof-set-ngc-total-6-coins-/a/1136-2044.s