Sporty seaplanes for the Schneider trophy are moved into the water.
Unused / unissued material - no paperwork - dates unclear or unknown.
A sea plane is moved down a slipway and into the water (presumably this is something to do with the Schneider Trophy races). The seaplane is towed out into open water by a small boat.
Closer shots of another plane being moved into the water. Much of the fuselage is covered with a tarpaulin. That sea plane is also towed away.
Another plane is moved along the slipway.