Grigg's electro-magnetic therapy machine
1873-1886
Grigg's electromagnetic therapy machine
1886-1900
Grigg's electromagnetic therapy machine
1873-1886
Box containing Grigg's electromagnetic therapy machine
1886-1900
Box containing Grigg's late 19th century electromagnetic therapy machine
1873-1900
Box containing Grigg's late C19 electromagnetic therapy machine
1873-1900