Lot 1073
Black machine overprints on 1923 issue: Switzerland, 20c. with overprinted "R" and 30 and 60c. in combination with Switzerland 50 rp. green, tied by cds. "BERN 11.I.27" to cover to Bogota with Agency cachet on reverse, rusty paperclip traces on registration stamp, sime minor wrinkles, otherwise fine
