Credential Document Credential on Bi-Weekly Paper of Physical Education Advertising «The Sports»

Credential Credential Document on Bi-Weekly Paper of Physical Education Propaganda «The Sports» signed by the main editor, declaring: "Mr. Constantine Mouton Osório, a bearer of this, is one of the corresponding sportives in the Olympics in Anvers, of the Portuguese newspaper "OS Sports". Lisbon, July 29, 1920 '.