Specifically, Serial number 017.
I am, I believe, the third owner of this OTA. I have owned it now for about 5 1/2 years. It is an F9 oiled triplet with FPL-51 as the ED element. It's at least 10 or more years old. I have written extensively about its visual optical performance several times here on CN's and will only say it is superb (!) visually with very low "CA", gives an excellent star test, one of the best I've seen in this aperture really, and takes high power with ease. It is one of my Reference Standards by which I gauge other scopes both mechanically and, especially, optically. My sample is bino-friendly with the appropriate combinations of diagonal, viewer and eyepieces.
The OTA is surprisingly lite weight for its size, coming in at around 49 pounds with the dovetail and rings (3 of them) attached, but still a nose heavy brute. I did use it in the field. Twice. I will never do that again. It has spent the last 4+ years outside, under cover (telegizmos 365 cover), sitting on a MI-250 GEM. As part of my evaluation of my newly acquired Losmandy Titan mount, I took down the 200ED and the MI-250 and brought them indoors for a good look at them both.
Which brings me around to the purpose of this thread which is really to document how well the 200ED has withstood the test of time outside here in SW Ohio, USA, where we get three full seasons. I will document its physical condition as well as its DPAC bench performance.