Got One
I have an old Plath sextant, I think from about 1925. It's not in an oak case, though (lucky you!) but Bakelite instead. Some of these are near-pristine, some junk. Mine is about half-way in between, but workable and should bring $300 - $500. Ebay's the place to check it out, fer shure. (So if you find someone who wants two, yours and mine, you'll let me know, right?!?);-)Michael O'