One Foot Scale

The curators of NIST’s collection of historical and scientific artifacts have thrown open the racks in hopes of crowdsourcing the origins of some unknown pieces.
On top of the list: this brass one foot scale, in a handy, fitted, velvet-lined travel case, which is obviously the inspiration for Walter de Maria’s High Energy Unit [also here]. Love that thing.
Anyway, case closed. What else ya got, NIST?
One Foot Scales: NIST Digital Collections crowdsourcing initiative [nistdigitalarchives]