DARMSTADT 23.6.12, airmail stamp 20 Pfg together with 5 Pfg Germania on officially airmail postcard, ribbed box, to Karlovy Vary / Bohemia to a patient at a health resort from Essen, reverse much text and dated \"Cologne 18.6.12\", in Karlovy Vary delivery not possible and with one-line cancel \"starting price unsuccessful\" further to Essen / Ruhr, in blue is signed postage due \"7\" Pfg