A box for an Enigma Uhr, sometimes referred to as the 'Stecker Uhr', or 'Plug Clock’, a device introduced by the German Airforce (Luftwaffe) in July 1944 to increase the cipher security of the Enigma machine. Manufactured by the Berlin firm Konski und Kruger, the Enigma Uhr replaced the patch cables on the Enigma machine's plugboard (Steckerbrett). Unlike the box housing the Enigma machine itself, the wood used for the construction of the box for the Enigma Uhr is of a much poorer quality - reflective of the state of German manufacturing late into the War. There is some damage to the box and the metal hinges have been replaced with strips of leather, likely evidence of a field repair. As explained by the label on the box "Bei drohender Feindgefahr Verdrahtung der Rasterscheibe zerstören!", meaning "When there is an imminent danger from the enemy, destroy the wiring of the grid disk!", the Enigma Uhr was also easily disabled before being overrun with the enemy. The quality of the Uhr's spring-loaded contacts and the way the cables were soldered onto the Uhr made it easy for the device to be destroyed quickly. Likely all that was needed was for the operator to pull the cables with one hand.