P. K. Arm
of 8 Southampton Row, London, WC1
- 1922 British Industries Fair Advert for "P. K." Artificial Limbs. Safety Leg with Automatic Locking Knee Joint; Mechanical Arm with a Hand that Grips. (Stand No. G.55) [1]
Sources of Information
- ↑ 1922 British Industries Fair Advert clxxviii; and p60