Are you ready to throw it all the way back to the old days for some old school astronomy and timekeeping?
This Nocturnal Abacus is a replica of a Nocturnal and Tide Computer from 1570. On one face is the abacus, or tide computer, to figure the time of the tides, while on the other face is the Nocturnal which is used to obtain the time during the night based on the positions of fixed stars. Display on your bookshelf for the ultimate conversation piece and impress your friends with this ancient gadget.
- Dimensions: Approx. 4.5" L
- Instructions included
- Made in Spain
