4"theodolite by Cooke, Troughton and Simms Ltd of York, numbered 35203 4"theodolite by Cooke 1970-1975
High power direct vision portable spectroscope made by John Browing, 63 Strand, 1869-71, once owned by William Henry Fox Talbot High power direct vision portable spectroscope made by John Browing 1869-1871