Ross Galleries 761 Coates Ave, Holbrook, NY11741 Part of the AJRoss auction company, Ross Galleries is conveniently located on the corner of Coates Avenue and Dante…More Court. Ross Galleries is where the art is displayed before they are sold auction. Though intended for auction, many pieces can be purchased at a set price in person or on their website. Fundraising auctions are also held regularly and can be scheduled for any charity at any time. Please give a call or stop down to schedule your event.