Ugh, I feel... But, if we were to ever figure out the Mystery Disc 100% for sure, then could we still call it the "MYSTERY" Disc?
In all likelihood, it was masked by a greeblies when they slapped a layer of black paint on the gun.
Here's the scenario in my head:
The SW guys get the gun as it came from Bapty, with no disc, grill, or sight greeblies, as evidenced by the pre production photos.
"It looks too plain," Lucas exclaims. "add some doohickeys on it!"
So they add a mystery greeblie, similar to the Merr Sonn's Imperial Disc, glue the grill onto it, and put the T-track and push rods onto the barrel. Then they lazily slap a thick layer of black paint onto the thing to homogenize and bend it all together.
At some point prior to filming, the disc greeblie either was intentionally removed, OR, more likely, fell off by accident. Either no one noticed, or no one cared. After all, it didn't affect the gun's ability to fire blanks, and it's not like anyone would ever care about it enough to try and look for it, right? :lol The thick layer of paint would also explain why the Disc looks recessed in some specific photos.
To this day, it's rumored that the original Disc greeblie is STILL sitting at the bottom of Han's custom ANH holster, where it fell off in. Someone needs to check in there...
One thought that I had is that people originally stated that they thought that the Mystery Disc was either the original bluing in CONTRAST with the flat black paint, which could look silver~ish in certain lighting, or that the glue used somehow ripped off the bluing, leaving a bare spot there, correct?
My theory is that the Disc is NOT either bluing or even a bare spot, but a layer of glue residue that remained behind when the Disc was ripped off. They probably used some cheap Elmer's Glue or something the like, which is thick, and WHITE colored, as opposed to being clear. This layer of white glue overtop the bluing would certainly look more silvery than bluing alone, and I can't imagine how regular glue could possibly remove a factory quality blue job. Camera flashes from publicity photos could have also contributed to the silver look of the disc as well. :angel This presents as the most likely scenario to me.
Thoughts/opinions? :confused