|PROF JOHN DAVIES|
Sold by J. L. Hammet. Boston. USA.
Prof Davies New Geographical and Astronomical Apparatus, 1870, was patented in United States, Russia, France, England and other countries of Europe.
The instrument can be used in two forms, the Luantellus and the Heliotellus.
"The Lunatellus is the Tellurium in a new form, and so improved as to illustrate the Astronomical phenomena of the Sun, Earth and Moon....."
The Printed Guide