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The signs accompanying the trenching tool and tongs, circa 2003.

They read

Astronaut Trenching Tool

This tool was used when a large amount of lunar soil was to be removed from an area.

Astronaut Tongs

Since space-suited astronauts couldn't bend over to pick up rocks and soil samples, they used these long-handled tongs.

Additional information on the trenching tool can be found on page 33 of the Catalog of Apollo Lunar Surface Geological Sampling Tools and Containers, and additional information on the tongs can be found on page 31.