2 x Southern Railways, Snail Brand OE Spanners - 5/16 W x 1/4 W and 3/8W x 1/8W
£22
This led to the creation of British Railways. The letters SR indicate it is a Southern Railway spanner. This would also indicate it was manufactured before 1947. 5/16 W, 3/8 BS x 1/4 W, 5/16 BS.