Sight Reduction Tables for Marine Navigation-Commercial Edition (Latitudes 15-30, inclusive, Volume 2

It looked like a brand new book. It even came with covering used on new books. Had a nice thank you note with it also. This is the place to get what you want if they have it. Thank you.....

Received the manual in excellent condition. Would buy again.

It’s the only book I’ll use to get a reduction of a celestial observation.