刚才问了chatgpt, a silver Morgan Dollar contains 90% of silver,

来源: poconodog 于 2026-01-29 15:10:15 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (71 bytes)

about 0.78 oz. is worth of $91. 所以收藏这些东西不值

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