Watch List notes:

World Coins and Tokens, China, Kwangtung province, Kuang Hsü, brass cash, undated (1890-1908) (4), characters around central square hole (KM.Y190), mostly bright, all certified and graded by NGC, two as Mint State 64 and Mint State 62, two as Uncirculated Details – Environmental Damage (4)
*ex Baldwin's vault
The 'Environmental Damage' appears to be partial peripheral bronze disease on otherwise mint state coins.

($200-250)