Berwick-Upon-Tweed the former county town of Berwickshire. Royal Border Bridge spans the River Tweed between Berwick-upon-Tweed and Tweedmouth in Northumberland. It is a Grade I listed railway viaduct built between 1847 and 1850 when it was opened by Queen Victoria. (From Wikipedia the free encyclopedia.) Each Print is 16-12 Inches Perfect size ready for Framing £9.99 Plus Postage & Packing.