1890 Felkl Geared Tellurian gift the primary Stadimeter manufacturer for

the primary Stadimeter manufacturer for the U

scientists or learned professionals would use these readings

the necklace is not included

while the glass sits gracefully atop its base on the swan's wings

1- Ruby (Oval Cut): 7

1890 Felkl Geared Tellurian gift the primary Stadimeter manufacturer forA unique geared tellurian by Jan Felkl & Son. Made in Pradue, circa 1890. An incredible astronomical demonstration device; Geared so that the earth revolves around the sun to demonstrate various principles of astronomy such as seasons and eclipses. Having a three inch terrestrial globe turning at the end of a cast iron arm, with a wooden representation of the moon revolving around the earth a candle in the brass holder is lit to cast light