Physical description

Wood-encased telephone (aluminium-reinforced edging strips) in leather carrying case.
Hinged lid mostly aluminium (some wooden trim).
(Missing from original: Metal dividers/calipers should be held by the leather strips on front of case).

Inscriptions & markings

Metal instruction plate inside lid - shows wiring diagram with instructions in Japanese.
Serial No. (Front of wooden box): 146112
(other inscriptions in Japanese)

References