Puerto Rico, covers. 28 covers including six 1859-64 stampless addressed to New York City with forwarding agent markings, six with P.R. overprinted stamps, five used in the United States, with stamp dealer corner cards, others including #212 with Military Station postmark, 215 and 216 on U11 entire to Germany, and 210, 211(2) & 212 on U2 first flight entire, etc. Estimate  $600 - 800. $0