C.V. Boys' integraph with case
1880-1885
Barker's integraph in box
Integraph by J.Amsler with wooden case. From Royal Aircraft Establishment
1910-1920
Wooden box containing Amsler's integraph
Integraph by Coradi No.10 in box
Abdank-Abakanowicz integraph made by G. Coradi
Prototype model integraph with wooden case by Stanley
1949-1951