Colombia SCADTA 1923 Costa Rica Airmail Overprints Short Set to 1p Used. Scott CLCR1-CLCR8

Very undercatalogued in Scott, about right in SG, the Costa Rica SCADTA stamps were handstamped in very low numbers (ignore the image in Scott which shows a false machine cancel - the Costa Rica overprints were all handstamped, except the 30c which was also machine stamped in Berlin). There were only 75 overprints of the 60c and just 50 examples of the 1 peso. Two shades of the 30c value are included in this short set.