Name/Title
Teaching Aid (Function Unknown)Entry/Object ID
1000.1548.3Description
Teaching Aid (Function Unknown)Made/Created
Manufacturer
W.M. Welch Scientific Co.Notes
where made: Chicago, ILGeneral Notes
Note
Function Unknown, from Santa Cruz School District, has horseshoe magnet with coil of wire suspended in middle of magnet, curved dial with pointer that can be rotated with knob at top.