* At the sale of European furniture and decorative arts at Skinner in Boston on July 11 the top lot was a Wedgwood Queen’s Ware “Frog Service” platter that sold for $54,510 (estimate $10,000-15,000). Other top sales included a pair of 18th century giltwood mirrors that sold for $28,440 (estimate $12,000-18,000), and a collection of late 18th/early 19th century Italian …