Sieve
The ungrateful end of a grating

 
This grating was found on a building site where old houses are pulled down, trees grubbed out, and concrete crushed [1]. It's functioning as sieve here, as last act before joining the rest of the rubble.

 
1
 
 
[1] See 'Clearance 1, 2' in the 2015-1 Photos section and 'Clearance 3' in 2015-2.

Camera: Nikon FM3a, 35 mm f/2.0 Nikkor.
Film: Ilford FP4 Plus.