Antique current shunt for you metrology types

[joeqsmith]

A friend of mine gave me this antique General Electric 0.2% 2A/mV 100A shunt.  I understand this was in a QC lab from a company that no longer exists.  I thought some of you may get a kick out of seeing it.   

I am not sure what the elements are made from or what appears to be some sort of coating on it. 

 

[TiN]

Doesn't look metrology grade to me  .

[joeqsmith]

Appears to be the same shunt as part of a kit.  The silver coating must have been original.  It appears non-conductive and I would assume some sort of paint for rust.  I wonder what the elements would have been made out of. 

http://www.ebay.com/itm/Vintage-GE-General-Electric-Volt-Millivolt-Shunt-Meter-Kit-In-Oak-Box/122438624828?_trksid=p2047675.c100037.m2107&_trkparms=aid%3D444000%26algo%3DSOI.DEFAULT%26ao%3D1%26asc%3D40130%26meid%3D957f1022499f431ea494ebaf86cc655b%26pid%3D100037%26rk%3D2%26rkt%3D2%26sd%3D122294278726


Tried it out for the fun of it.