A3 Blue Picture Frame, Fits A3 (29.7 x 42cm - 11.7 x 16.5in) Poster, Photo, or Print. Portrait and Horizontal Wall Hooks : Amazon.co.uk: Stationery & Office Supplies
White Poster Frame A3 3-pack | eBay
Amazon.com - Americanflat A3 Picture Frame in Black - Composite Wood with Shatter Resistant Glass - Horizontal and Vertical Formats for Wall - 11.7 x 16.5 in