Gibraltar. (Spain). 1854. Stamp-less envelope written from Gibraltar dated '20th Nov 1854' addressed to Cadiz Spain with hand-struck 'De Gibr./S. Roque/ And Baxa' and charged '8' in red on face with San Roque and Cadiz arrival '22nd Nov' on reverse. Very attractive item of unpaid mail from Gibraltar overland to Spain. Only five examples of the border transit mark known in red .