Geophone

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Item Geophone
Item code
Description
Manufacturer
Circa
Model
Donor Charlie Klutts
Location HGC
Serial number NMI-26"NMI" can not be assigned to a declared number type with value -26.
Taxonomy IMG2177
  1. 26. NMI. All brass case and stud. Cap contains molded rubber preformed packing gland. Unique spike has set screw. Numbers 00821 are stamped longitudinally on side of case.

GSH IMG2177.jpg