It was a plastic Davis Mark Master. No, I don't have it anymore.
I really didn't need the Astronomical Almanac for navigation, of course. I once ordered full-precision planet and moon ephemeris from the US Naval Observatory that came on a big magnetic tape. But the coordinate data was referenced in the Terrestrial Dynamic Time (TDT) scale. So I had to dive into the astronomical end to learn about all the different time scales, how to use and where to find the data to convert between some of them.
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