Chinese blue-on-white porcelain cup, Kangxi period, intact, ex-1715 Fleet. 68 grams, 3-1/4" diameter, 2-1/4" tall. Outstanding intact teacup with bold blue coloring under deep glaze, fluted sides, looks like it was made yesterday. From the 1715 Fleet ("early recovery from private collection"), with framed photo-certificate.
Estimate: $500-1000