18th century  Treen Maritime Hourglass

18th century Treen Maritime Hourglass

Code: 10604

Dimensions:

W: 9.5cm (3.7")H: 19.5cm (7.7")

POA

This is an 18th century example or earlier , where the two glasses are joined in the middle. It is also Maritime because one of the columns is a rectangular piece of wood which was used to grab and turn upside down when timing for speed and navigation purposes.