Scotland: Borders. Grey Mares Tail Waterfall. 1950s Photo Postcard Scotland: Borders. Grey Mares Tail Waterfall. 1950s Photo Postcard Grey Mares Tail Waterfall Dumfries & Galloway 1950s Postcard Scottish waterfall photo postcard. Photographed and published in Selkirk by A R Edwards & Son. Publishers card Ref: 3172. Postally used with stamp. Postmrks for Peebleshire 1954. Good condition overall. £1.95 £1.95 Add To Basket 1 in stock. 0 in your basket View Basket Checkout