[Letters patent (no. 1673) granted to Stephen Thomas Wentworth for improvements in burners for consuming gas and air combined, 1872 Jun 3, with associated ephemeral material. With attached wax seal in can. Address of Wentworth, gas fitter, given as Queen Street, Cheapside. Ephemera includes /2 ms. description of his invention (2p.); /5 folding business card of Wentworth, 'Gas Fitter, Sun Burner Maker, and manufacturer of every description of Ventilating and Warming Apparatus etc.' bearing lists of all his prices; /6 printed advertisement for 'Wentworth's improved patent floating water heater' (1p.). Housed in box of Tongue & Birkbeck, patent agents]