Ha! I said the same thing, except MT3. I think the font and scoops are a little more like the C64; at least the version I’m most familiar with.
Here’s mine, which has been converted to a USB keyboard:
This is a fun time to mention the keys on the Atari 800 XL are literally R3 SA:
SP SA is supposedly based on old tooling that’s been adapted for MX stems - well, I’m about 99% sure it’s this right here. Check it out:
SA Chocolatier on the left, 800 XL key on the right.
Looks like they polished-out the grainy texture when they re-tooled the stems.
I took these photos ages ago and forgot about them until this evening.
Gorton AF