Sample Safe

See: Spirit Safe

(a.k.a. Spirit and Sample Safe)
Invented by Septimious Fox, circa 1820.
Brass-bound, padlocked and glass fronted apparatus, existent in each Scottish distillery, for to test, analyse and control the quality and quantity during the distillation but without coming into contact with the spirit itself.
The Spirit safes are compulsory since 1823, and are locked by HM Customs & Excise responsible for the collection of duty.