Greenhouse venting crank

Sigh: another filler. The second in three days.
The hand crank to open the roof vents of the main greenhouse on campus.

1 year ago (“Sixth sense?”): http://365project.org/rhoing/365/2014-11-29
2 years ago (“Living room abstract”): http://365project.org/rhoing/365/2013-11-29
3 years ago (“Pucker up, baby!”): http://365project.org/rhoing/365/2012-11-29
4 years ago (“Abstract #9”): http://365project.org/rhoing/365/2011-11-29

[ IMG_7383S8x12tm :: f/4.5 :: 1/200" :: ISO-400 :: 60mm ]