These are covers sent to Camps and Jamborees and are part of their thorough postal study.
To the XII World Jamboree
09/03/67
Tulln, Austria
To the Ham Radio Station K7WSJ
Franked with Austrian Scout stamp
This cancel date is probably in error as it reads -9.-3.67-17. which would be March 9. The Jamboree ran from Aug 1 through Aug 9. There are no postal markings on the back.
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