I had one of these back in the late 90s/early 2000s. The optics were really good. I had a friend that loaned me his Questar for a summer and I got to compare it to the ETX. Optically there wasn’t much between then (I’d say maybe the Q was a smidge sharper).
If you have the RA version of the ETX, then it will be awesome. Once you get the little mount aligned with Polaris (or the south celestial pole) it will track nicely. I had the EC version with GOTO and man… that thing sounded like a coffee grinder when it was slewing around the sky.
The Q has a way higher quality mount. But what you have is essentially perfect for a small take it anywhere portable observatory. I’ve been keeping my eye out for one of these myself! Someday I might stumble upon a deal like this.
Congrats!!! 
It just says ETX90 on the back & it's made in USA.
Not sure what RA is & it has no tripod.
Not the AT model. I presume that is the auto tracking? https://telescopes.n...-with-uhtc.html
https://www.opticspl...6do85a09REpGiSz
There is another at same price I paid open box no return untested.
Listing description: Seems it's the model before RA but that's ok maybe that was not made in USA?
Up for sale is this original Meade ETX 90 Table Top Telescope Maksutov-Cassegrain.
D = 90mm, F = 1250mm. f/13.8
Originally named simply ETX-90 Astro, it became known as the ETX-90 RA (right ascension drive) when the newer EC (electronic control) model was released.
Although it is motorized, you can loosen the locking knobs and position manually.
This is in good condition and shows signs of normal use. It powers on but I have not tested for accuracy. Comes with the original box, front and rear lens caps, #12 Yellow Moon filter, SVBONY 5X Barlow Lens, 3X Barlow Lens, a Meade Super Plossl 26mm LP Multi-Coated eyepiece, a 4mm eyepiece, a 12.5mm eyepiece, and 8x21mm finderscope.
You can also attach a SLR or mirrorless camera to the back of this using a T-adapter (not included) and a flip of the mirror lever for astrophotography.
Sounds like he knows it. It's not sold as is so as long as it works it;s fine with me.