A piece of something being measured against a ruler that says  2003 T252.
Ruer 2003 T252 is laid out to measure a piece of putty.
The object in the picture appears to be about 23 millimeters long
golden nugget next to black ruler with 2003 T252 on corner of it
The ruler with a 2003 T252 sticker shows the gold object is 22 mm long.