Frick. Multiple 260|c subfields.

[aindlq]

There are 37 records with two 260|c subfields. From quick look it seems that some of the values should be in 260|a and some should be merged into a single 260|c.

Frick's public catalog UI also assumes that there is only a single 260|c so it shows only the first value, see https://library.frick.org/permalink/01NYA_INST/1qqhid8/alma991013149709707141

991013149709707141: "Before", "1523"
991005182499707141: "Essoyes", "1907"
991012321789707141: "Venice", "ca. 1739-1747"
991005095669707141: "Rome", "1788"
991004931759707141: "Paris", "1690"
991005202739707141: "Paris", "1905"
991004680239707141: "Richmond", "ca. 1808; 1808"
991004680309707141: "New York", "ca. 1797 or 1798; ca. 1797"
991004680599707141: "Richmond", "1808"
991004680699707141: "Richmond", "1808"
991003146309707141: "New York", "1793"
991013621575707141: "London", "1831"
991013621577807141: "London", "1840"
991005220719707141: "Paris", "1715"
991005221289707141: "Paris", "1698"
991013302559707141: "1560;", "ca. 1560"
991013621672207141: "London", "1828"
991013176679707141: "For dating ranging from", "1502 to 1508"
991005214899707141: "Munich", "1910"
991013175629707141: "Winter of", "1511-1512"
991001342899707141: "1826, or 1825;", "ca. 1841-1846"
991013621572007141: "London", "1820"
991003147479707141: "Philadelphia", "1800"
991000422469707141: "Not much later than", "1520"
991013099919707141: "Paid for in", "1445"
991013100009707141: "Completed", "1442"
991003577199707141: "Arras", "1783"
991013210449707141: "Amsterdam", "1810"
991005212639707141: "Cagnes", "1909"
991005213599707141: "Paris", "1914"
991005245929707141: "Rome", "ca. 1760; ca. 1760-1764"
991004271839707141: "London", "May 2-6, 1795"
991013155489707141: "Early", "15th century"
991013155529707141: "2nd half of the", "15th century"
991013156559707141: "Finished in", "September, 1621"
991013156639707141: "Philadelphia", "1796"
991004278399707141: "Painted in Munich", "1905"