Vintage Military Decade Resistance Box. Precision .01 ohm to 10M. .01% tolerance

Description

Vintage Military Decade Resistance Box. Precision .01 ohm to 10M.  .01% tolerance. Working and tested, each range (see last picture). How is the best way to make a precision decade box? Start off with switches with solid-silver contacts, wired with silver-wire. Then for reference resistors, use wire wound, precision,
.01% resistors. Grease up the switch bearings and, there you go.
Check my 100% feedback since 1998. Thanks for looking.