26 August (Poland ) within release World Championship in the Optimist class goes into circulation First Day Cover World Championship in the Optimist class face value 1.75 Polish złoty
First Day Cover World Championship in the Optimist class in catalogues | |
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Polish Stamps Catalog (Fischer): | Pol:PL FDC4633 |
First Day Cover is horizontal format.
S-1725Also in the issue World Championship in the Optimist class:
First Day Cover World Championship in the Optimist class it reflects the thematic directions:
Water sports or aquatic sports are sports activities conducted on waterbodies and can be categorized according to the degree of immersion by the participants.
Swimming is the self-propulsion of a person through water, or other liquid, usually for recreation, sport, exercise, or survival. Locomotion is achieved through coordinated movement of the limbs and the body to achieve hydrodynamic thrust that results in directional motion. Humans can hold their breath underwater and undertake rudimentary locomotive swimming within weeks of birth, as a survival response. Swimming requires stamina, skills, and proper technique.