I'm not able to select the contest flair. I assume that's for the admins only.  
Confirmed.

The original 1977 units would be 26-1001 with 4K and no numeric keypad. 26-1003 was the original 16k version.  
26-1004 is 4K and -1006 is 16K with Level 2 from the factory.  
a -1 sticker after the model number indicates the XRX cassette mod was applied.  
I have no idea when the numeric keypads were added.

I didn't realize there was a distinction from 77 to 78. The one I have is a 26-1006 so I assume that means it's a 78 also. It has a technician note on the bottom indicating it was upgraded to a level II BASIC ROM in September 1980

This one is only 4K so it doesn't get a lot of use but it's a 1978 model 26-1004.  
Probably the closest I'll ever get to an original '77

My only other CRT is also a TRS-80 Model 1. It's the centerpiece of my collection. I'll never not upvote one.

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Ah, and it probably shows up blue in the camera just like the crts of old Macs

It's white, but they generally have a blue tint to them.

That’s something rare, I’ve never seen a blue phosphor crt

Team Blue, TRS-80 Model 1