
Appraisals
(301) 770-0477
Two locations--2000 P St., NW Wash., DC and Above Address--Generalists Buying, (more)
Auction House
(727) 687-3298
The first internet-based auction house specialising in cartography. Founded in 1978 (more)
Book Dealer: Antiquarian & Rare
(503) 719-5200
First editions bought and sold. Open Saturdays and by appointment.