Bridget Riley produced later paintings that looked at relationships between colours. But Mr Higgins loves these early monochrome paintings because the illusion of movement is created.
Early Op Art? Dazzle Ships / Dazzle Camoflage
During World War One and to a lesser extent World War Two British Royal Navy used striking patterns on their ships to confuse German Submarines and Ships. The idea was seeing the ship against the moving waves or through the periscope of a submarine it would be impossible to tell what it was and which way is was travelling
British Ship HMS Argus at sea 1918
Unidentified ship in dock