Hickok DC Microammeter, Range 0-20 MA, Made in USA

One used Hickok DC microammeter.  Range is 0-20 ma.    Made in USA.  Model 46.  Needle moves freely.  Dimensions are 3" x 3".   Back is marked 3500 ohms.

Vintage meters, new or used, are described as completely as possible.
Because of their age, they are sold as is.
I'll do my best to describe them as accurately as possible.
I have been selling on eBay for over 25 years, and I do my best.