1887: exhibits by R. & J. Beck
Find out more about this exhibition
List of all exhibits from the catalogue for this exhibition:
| Exhibit no. | Exhibitor | Exhibit title | Section | Picture | Catalogue |
|---|---|---|---|---|---|
| 685 | R. & J. Beck | Rectilinear and Wide Angle Lenses, with "Iris" Diaphragm | Apparatus | catalogue page |
