Vintage condition.  Looks good...see all photos.  This requires 3 screws for mounting.  There are two that I will include.   It is approx. 8" from the top of the back mounting plate to the bottom of the ring.  The ring is approx. 6" across. 

Please **SEE ALL PHOTOS** 
for the best visual description of condition. 
Also, Please **READ CONDITION DESCRIPTION**
My items come from a Smoke-Free Environment
Thank you for your interest.