LONDON GEOMETRIC CIRCLE TYPE 1B IN RED. 1883 unpaid envelope London to Bogota, Columbia via Panama on reverse fine strike LONDON GEOMETRIC CIRCLE in red MY.30.83. Apparently cover entered South America through Peru where it was taxed with 1£ provisional stamps in Arequipa during the Chilean occupation! NO OTHER GEOMETRIC CANCEL RECORDED IN RED AND THIS ONE EX STANLEY COHEN COLLECTION. (Ref 91188).