Browse Items (69 total)

April 2021: this device has been reidentified as a secohmmeter and will be updated with information soon.  Exciting find! Physical Description: Rectangular brass box with removable lid on top of black iron base. Brass box is mostly hollow. A shaft…

Physical description: A nickeled brass surveyor's cross in a wooden fitted case. The cross consists of a cylinder with a compass on the top and a gimbaled socket on the bottom for mounting on a stake or tripod. The main body of the instrument…

Physical Description These crystal models are composed of a lightly colored Pearwood. Each model is precisely shaped with correct angles to illustrate various examples of seven different groups of crystal structures: isometric, tetragonal, hexagonal,…

Physical Description There are three unique agate mortar and pestles at A.E. Seaman Mineral Museum. The largest mortar measures three centimeters in diameter at the base, while the matching pestle measures five centimeters in length. This mortar and…

Physical Description There are three unique agate mortar and pestles at A.E. Seaman Mineral Museum. The smallest mortar measures two centimeters in diameter at the base, while the matching pestle measures four centimeters in length. This mortar and…

Physical Description There are three unique agate mortar and pestles at A.E. Seaman Mineral Museum. The second largest mortar measures two and one half centimeters in diameter at the base, while the matching pestle measures five centimeters in…

Physical Description: Two light-colored pine boxes with no cover or top feature slots for 36 individual glass microscope slides. The boxes do have empty spaces and they are glued together. There is no hardware on either box. The slides display thin…

Physical Description This Richter drafting set has an original wooden case covered in a thin black leather and shaped with brass wire. The top of the case is stamped in gold with a company logo reading: “Pracision|E.O. Richter & Co; Arctic Coal…

Physical Description These crystal models are composed of a lightly colored Pearwood. Each model is precisely shaped with correct angles to illustrate various examples of seven different groups of crystal structures: isometric, tetragonal, hexagonal,…

Physical Description These crystal models are composed of a lightly colored Pearwood. Each model is precisely shaped with correct angles to illustrate various examples of seven different groups of crystal structures: isometric, tetragonal, hexagonal,…