![](https://coimages.sciencemuseumgroup.org.uk/361/823/large_thumbnail_smg00177032.jpg)
![](https://coimages.sciencemuseumgroup.org.uk/361/823/large_thumbnail_smg00177032.jpg)
![](https://coimages.sciencemuseumgroup.org.uk/7/514/large_thumbnail_1885_0007__0005_.jpg)
C.V. Boys' integraph with case
1880-1885
![](https://coimages.sciencemuseumgroup.org.uk/354/611/large_thumbnail_smg00049440.jpg)
Barker's integraph in box
![](https://coimages.sciencemuseumgroup.org.uk/342/121/large_thumbnail_smg00176241.jpg)
Integraph by J.Amsler with wooden case. From Royal Aircraft Establishment
1910-1920
Integraph by Coradi No.10 in box
Wooden box containing Amsler's integraph
Abdank-Abakanowicz integraph made by G. Coradi
Prototype model integraph with wooden case by Stanley
1949-1951