WHEELY LOCKED

I guess nobody is going to turn this wheel without the key !
A drainage valve on a reservoir. Then again it could be something inside my mouth after another visit to the dentist . . . cannot feel a thing !
Thank you for all your support.
Keep up the grand work and let us see if Blip can survive. #FCFB
Not sure about 365 project - but will double post if I can - try
http://365project.org/riversideboro/365