The London market enters its ‘masters’ phase in earnest this week with a series of dealer-led events that herald the main Old Master auctions next week. On Thursday, ‘Masterpiece’, a fair for 150 dealers in disciplines from Old Masters and antiquities to classic cars and modern art, opens in the grounds of the Royal Chelsea Hospital. On Friday, ‘Master Paintings Week’, an initiative by 23 central London dealers, specialising predominantly in Old Master paintings begins, as does ‘Master Drawings’, a forum for dealers in Old Master and modern drawings.
Market News
The Daily Telegraph
A striking map of Southeast Asia from the 1482 Ulm Ptolemy
Wall map of Liguria
Original manuscript plat map of the area in lower Manhattan that would later become the site of the World Trade Center, and ultimately the 9/11 Memorial 

