This is a pair of safety glasses of simple constructed. The lenses are circular and made of rose didymium. The lenses are mounted in a…
A metal protective case with a single handle, two lockable latches, and a hinged lid, contains an built-in instrument whose console is revealed when the…
This is a glass disc with a mirrored surface on one face and a clear glass surface on the other. The faces are separated by…
This piece consists of a glass flask in the shape of a tube with two bulbs. Inside the flask are a number of small glass…
This piece consists of a hollow metal sphere from which several spouts protrude. One large spout protrudes from the top; one large and two small…
Glassware tube with tapered ends and a perpendicular spout at either end; tube contains a tube within another tube, each connected to a spout.
2000 cubic centimerter glass flask with “bulb” chamber in neck. Volume measurement lines mark the neck. 15 degrees Celsius is indicated on the flask.