Rare Thomas Bradburn & Sons Scale Rule. (13471)

Rare boxwood rule fully bound with brass and has a sliding scale rule, both pins are present and close into there brass holes nice and easy, the rule is straight with no cupping or bowing, stamped I, ROUTLEDGE ENGINEER BOLTON. made by Thomas Bradburn & Sons Birmingham established 1834. Also has their trademark stamp, see close up photos of measurements very interesting rule in very good condition, 

Price is inclusive of postage to mainland U.K.