The mirrored scale makes it easier to read the instrument to a given accuracy by enabling the user to eleiminate parallax errors.
All hardware is nickel-plated brass.
The front panel has a window cut into it to view the meter face. The meter has a mirrored scale. The instrument has four rubber feet on the bottom for storage and four more feet on the back for use during operation. There are two nickel-plated brass binding posts on the left side of the instrument's case. The original finish is crazed and chipped around corners and edges.