Harling founded the firm in 1851 at 47 Finsbury Pavement, London. They specialised in making drawing instruments, with a factory at Grosvenor Works, Hackney, London EC. According to Scott-Scott they ceased making instruments to the traditional pattern in 1929 and changed to flat pattern ones. In 1964, having merged with Blundell Rules Ltd to form Blundell Harling, they moved to the Blundell premises in Weymouth.
A fine, fifteen inch, boxwood & lacquered brass, parallel rule for navigational use by W H Harling, 117 Moorgate, London. The makers were at this address in the 1930s. It has a fine, fitted mahogany box.
A three tier case believed to be by Harling (the three pens are signed Harling). The mahogany case is brass bound. The upper tray contains the usual full set of electrum instruments whilst the middle tray has eleven cakes of water colour by Reeves & Sons embossed on the reverse with the broad arrow and Council of India. The Council of India was the governing body from 1773 to 1920. The case bottom has the usual compartments for a protractor and parallel rule but these are empty. Probably ca. 1870.