Early prototype of the Simpson series 2 prosthetic arm, made with Meccano-like gears and welded rods activated by levers at the shoulder, metal, designed by David Simpson, Edinburgh, Scotland, late 1960s

Simpson series 2 prosthetic arms on harness, steel and plastic with silicone cosmetic covering, part of the research and education collections of the Southeast Mobility and Rehabilitation Technology (SMART) Centre, Edinburgh, designed by David Simpson, Edinburgh, late 1970s - early 1980s

Prosthetic arm, EMAS (Edinburgh Modular Arm System), the world's first bionic arm, designed as a modular system so the joints could be fitted to patients with a range of different prosthetic needs, metal and plastic, this arm was fitted to Robert Campbell Aird, part of the research and education collections of the Southeast Mobility and Rehabilitation Technology (SMART) Centre, Edinburgh, resulting from the research of David Gow, Edinburgh, 1998

Prosthetic finger, ProDigit finger, early i-LIMB finger, individually powered finger, a successful commercial result of Edinburgh based research to develop modular prosthetics, opaque plastic, Touch Bionics, Livingston, c. 2005

Prosthetic hand with articulated knuckles and sprung thumb, hand is carved wood with metal compontents, forearm is leather, part of the research and education collections of the Southeast Mobility and Rehabilitation Technology (SMART) Centre, Edinburgh, early 20th century

Body powered prosthetic right hand, solid plastic with rubber thumb with attached cable used to power it, part of the research and education collections of the Southeast Mobility and Rehabilitation Technology (SMART) Centre, Edinburgh, 1964

Body powered prosthetic right hand, metal with two internal cables exiting either side of the wrist, at the end of each is a leather and metal buckle, fingers and thumb jointed and articulated, part of the research and education collections of the Southeast Mobility and Rehabilitation Technology (SMART) Centre, Edinburgh

Body powered prosthetic right hand, plastic with silicone cosmetic sleeve which extends to cover forearm, part of the research and education collections of the Southeast Mobility and Rehabilitation Technology (SMART) Centre, Edinburgh

Body powered prosthetic right hand and forearm, plastic, fingers and thumb articulated from lower knuckle joint, hand mounted on toughened leather and metal forearm attached to fabric harness, part of the research and education collections of the Southeast Mobility and Rehabilitation Technology (SMART) Centre, Edinburgh, by RSL Steeper Ltd, Rochester, Kent, 1991

Passive prosthetic right hand, with skin like detail and a zip fastening along the length of the arm up to the wrist pulse point, hand shaped using polyurethane foam with PVC covering, part of the research and education collections of the Southeast Mobility and Rehabilitation Technology (SMART) Centre, Edinburgh

Woman's passive prosthetic left hand and forearm, hard PVC shell with skin like markings and shaped fingernails, part of the research and education collections of the Southeast Mobility and Rehabilitation Technology (SMART) Centre, Edinburgh, by Centri AB, Sollentuna, Sweden

Passive prosthetic left hand, hard moulded plastic with pink leather and suede forearm with zip running up thumb side, fingers cosmetic, thumb moves via internal spring, part of the research and education collections of the Southeast Mobility and Rehabilitation Technology (SMART) Centre, Edinburgh, by RSL Steeper Ltd, Rochester, Kent, 1988

Prosthetic hand, plastic palm with plastic fingers, three finger grip, powered by compressed gas, part of the research and education collections of the Southeast Mobility and Rehabilitation Technology (SMART) Centre, Edinburgh, Otto Bock Healthcare Plc., Germany, late 20th century

Dorrance hook for right hand, Model 5X, body powered prosthetic, stainless steel lined with nitrile rubber, part of the research and education collections of the Southeast Mobility and Rehabilitation Technology (SMART) Centre, Edinburgh, Hosmer Dorrance Corporation, c. 2000

Prototype of the Simpson series 1 prosthetic arm, gas powered, self levelling, metal, designed by David Simpson, Edinburgh, Scotland, 1964 - 1965

Simpson series 1 prosthetic arm, small arm with cylinder and piston, half covered with skin coloured sleeve, steel and plastic, part of the research and education collections of the Southeast Mobility and Rehabilitation Technology (SMART) Centre, Edinburgh, designed by David Simpson, Edinburgh, 1964 - 1965