FOUR DRAW LEATHER Covered SPY GLASS A four-draw leather-covered spy glass which is 42 inches when fully extended. Composed of four collapsing sections and an extendable glare shield. When fully closed, the black leather-clad section and glare shield measure only 12½ inches. The amount of light reaching the eye is adjustable by sliding a variable opening in the eyepiece. This spy glass is nickel-plated brass; we could not find a maker mark. The age of this well-made instrument is estimated to be early 20th century. Very good condition ~ there is minor wear to the leather.
Condition: Used
Manufacturer: Unmarked  

LABORATORY THERMOMETER Thermometer, laboratory. This lab thermometer comes with it's original cardboard tube. Tube is marked, ''Laboratory Apparatus/ 30 to 300°/ No. 9526/ General Laboratory/ Arthur H. Thomas Company/ Philadelphia, U.S.A.'' The thermometer is marked, ''3/ Immersion/ A.H.T. Co./ Nitrogen Filled''. Very good condition. The tube is missing it's cap.
Condition: Used
Manufacturer: Arthur H. Thomas Co.  

Tasco MICROSCOPIC SLIDES of PLANTS with Box A box of twelve prepared slides of plants. Marked ''Tasco''. Very good condition.
Condition: Used
Manufacturer: Tasco