Wooden and ivory tobacco jar, Japanese, 18th century.

Navigation slide rule, c 1800.

Navigation slide rule, c 1800.

Southern Railway general system map. SR car

Dictaphone, Type A, c. 1924.

'London: Kingsway', c 1914.

'London: Trafalgar Square', c 1914.

'London Types: The Postman', c 1914.

'London: Charing Cross And Strand', c 1914.

'London Types: The Orderly Boy', c 1914

'London: Tower Bridge', c 1914.

'London: Kensington Gardens, The Fountains', c 1914.