CREATE TABLE table_39075 ("Denomination" CLOB, "Metal" CLOB, "Weight" CLOB, "Shape" CLOB, "Size" CLOB)

What is the weight with the shape of scalloped, and that is a size of 20mm (across scallops)?
SELECT "Weight" FROM table_39075 WHERE "Shape" = 'scalloped' AND "Size" = '20mm (across scallops)'
SELECT "Weight" FROM "table_39075" WHERE "Shape" = 'scalloped' AND "Size" = '20mm (across scallops)'