Winter Project #1 - Spherometer

There's a project that Samia K. started during the summer of 2013 or so where she pulled in a group of A/I students to make 3D models of objects found in the Lick Observatory.  Honestly though, I wasn't sure if I wanted to model stuff, and all the easier looking objects seem to have been taken so I decided on the piece called a, "spherometer".  If you were to look it up you'll get a different object than the one that I'm trying to finish modeling. xD

So here's a WIP of what I have so far plus a reference photo:

Update: Jan 9th, 2014: