What goes round comes round:
(https://onlinebicyclemuseum.co.uk/wp-content/uploads/2014/06/1900-Folding-Perdersen-10.jpg)
1900 Dursley Pedersen ‘Detachable’ Military Cycle,
fought in the Anglo-Boer War 1899-1902
Reproduced for educational purposes from this fascinating page --
https://onlinebicyclemuseum.co.uk/1900-dursley-pedersen-military-cycle/
-- which has many more fascinating photographs. The ultimate copyright source is David Evans's book Mr Pedersen: A Man of Genius.