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Sir William Congreve, 2nd Baronet's plan for perpetual motion of a boat using wave or current power
ARP23A15_485

Sir William Congreve, 2nd Baronet's plan for perpe...

An electric brake fitted on a railway wagon
ARP23A18_160

An electric brake fitted on a railway wagon

Zenobe Theophile Gramme
ARP07114_011014P

Zenobe Theophile Gramme

Part of Old London Bridge, built 1176-1209
ARP07097_390002322

Part of Old London Bridge, built 1176-1209