1950 - 1959
![Colombia 1958](/image/153682/base250X250/colombia-1958-colombia-commercial-envelope-to-denmark-with-pair-60-cvs-el-mono.jpg)
Colombia, Michel 510+, Cover
1958. COLOMBIA. Commercial envelope to Denmark with pair 60 CVS EL MONO DE LA PILA TUNJA + 25 CENTAVOS José Celestino Mutis and José Jerónimo Triana cancelled BARRANQUELLA 18.XII. 58.
![Colombia 1957](/image/153683/base250X250/colombia-1957-colombia-commercial-envelope-to-denmark-with-60-cvs-el-mono-de-la.jpg)
Colombia, Michel 811+, Cover
1957. COLOMBIA. Commercial envelope to Denmark with 60 CVS EL MONO DE LA PILA TUNJA + 10 CENTAVOS General Reyes cancelled BOGOTA 16.XII.57.
![Colombia 1958](/image/153684/base250X250/colombia-1958-colombia-commercial-envelope-to-denmark-with-3-stripe-40-cvs-cali.jpg)
Colombia, Michel 776+, Cover
1958. COLOMBIA. Commercial envelope to Denmark with 3-STRIPE 40 CVS CALI + 5 c on 5 CENTAVOS CATEDRAL DE SAL + 2 ex 10 CENTAVOS coffe-harvest.
![Colombia 1960](/image/153243/base250X250/colombia-1960-colombia-fine-commercial-envelope-to-usa-with-60-c-avianca-plane.jpg)
Colombia, Michel 894, Cover
1960. COLOMBIA. Fine commercial envelope to USA with 60 c AVIANCA plane motive cancelled CALI 3.XI.60.
![Colombia 1955](/image/153239/base250X250/colombia-1955-colombia-fine-small-registered-cover-to-usa-with-3-stripe-caro-and.jpg)
Colombia, Michel 743+, Cover
1955. COLOMBIA. Fine small registered cover to USA with 3-stripe CARO and 10 c + 5 ctvs Rotary cancelled CALI 4. XII. 55.
![Colombia 1959](/image/153236/base250X250/colombia-1959-colombia-mgr-r-m-carrasquilla-in-complete-set-on-recomendado-to.jpg)
Colombia, Michel 845-847, Cover
1959. COLOMBIA. Mgr. R.-M. Carrasquilla in complete set on RECOMENDADO to USA with arrival cancel reverse NEW YORK MAR 18 1959 together with different transit cancels.
![Colombia 1959](/image/153237/base250X250/colombia-1959-colombia-mgr-r-m-carrasquilla-in-complete-set-on-recomendado-to.jpg)
Colombia, Michel 845-847, Cover
1959. COLOMBIA. Mgr. R.-M. Carrasquilla in complete set on RECOMENDADO to USA with arrival cancel reverse NEW YORK MAR 18 1959 together with different transit cancels.
![Colombia 1959](/image/153130/base250X250/colombia-1959-colombia-mgr-r-m-carrasquilla-in-complete-set-on-recomendado-to.jpg)
Colombia, Michel 845-847, Cover
1959. COLOMBIA. Mgr. R.-M. Carrasquilla in complete set on RECOMENDADO to USA with arrival cancel reverse NEW YORK MAR 18 1959 together with different transit cancels.
![Colombia 1955](/image/140387/base250X250/colombia-1955-colombia-rotary-complete-set-never-hinged.jpg)
Colombia, Michel 743-744, Mint never hinged
1955. COLOMBIA. Rotary complete set never hinged.
![Colombia 1958](/image/8715/base250X250/colombia-1958-geophysik-3-ex-correos-de-colombia-bogota-18-vi-58.jpg)
Colombia, Michel 827-829, Cover
1958. GEOPHYSIK. 3 EX. CORREOS DE COLOMBIA BOGOTA -18. VI. 58.