I have been feverishly working on my website (which is getting pretty huge) and have been looking at a lot of images over the weekend. I have collected photos and/or serial numbers to 116 Celebrities, so far. Yay! I am finding all sorts of cool stuff. Which brings me to this 1973 Celebrity-I. This guitar has two buttons that I have never seen on a Mosrite Celebrity. They look like they just push in and push out. They look period correct, but I don't know. Can anyone tell me what they are, if they were original, etc? Help please!
Additional note: In looking at my samples I found another guitar with these two buttons, so I am thinking they are original. Both of the guitars serial numbers were from the 1c prefix and early 70's. Also, please excuse my ignorance on this, but are these pickups called Humbuckers? When I zoom in I can just make out the Mosrite logo under the second row of screws.

Now a close up of the buttons.
