Results
There are 5 records matching your search.
Displaying records 1 to 5
Switch Views: Lightbox
| Image List
| List
Title | Maker | Date Made | |
'Calthorpe' test chart | Calthorpe | c.1963 | View |
Chart No 8 - for a Turville Infinity Balance | Raphael's Ltd | 1950s? | View |
Freeman Bichromatic Unit | R. Archer & Sons Ltd | Mid 20th c. | View |
test chart | Kirk Brothers | Pre 1931 | View |
Turville Infinity Balance and General Subjective Unit | Raphael's Ltd | 1930s | View |