Costa Rica. (Panama). 1897. Registered, Advice of Receipt envelope addressed to 'Captain Bass, Agent P.S.N.C. ,Panama' bearing Yvert 33, 5c violet (4) and Yvert 34, 10c green tied by Punt-Arenas/Costa Rica double ring in violet '1st June' with hand-struck framed 'R/Costa-Rica/Punt Arenas/No' on face and 'Punt Arenas/ A.R./Costa Rica' in violet hand-stamp on reverse with 'Recomendados/Panama' receiver '8th Jun 1897' on face. Lovely Advice of Receipt item of Exhibition quality.