![...](https://files.ingeniumcanada.org/items/coll/291/466/1973-0423-001-aa-cs_thumb.jpeg)
Projector, ophthalmological
1973.0423.001
![...](https://files.ingeniumcanada.org/items/coll/291/468/1973-0423-002-aa-cs_thumb.jpeg)
Slide
1973.0423.002
![...](https://files.ingeniumcanada.org/items/coll/291/469/1973-0423-003-aa-cs_thumb.jpeg)
Slide
1973.0423.003
![...](https://files.ingeniumcanada.org/items/coll/291/470/1973-0423-004-aa-cs_thumb.jpeg)
Slide
1973.0423.004
![...](https://files.ingeniumcanada.org/items/coll/291/471/1973-0423-005-aa-cs_thumb.jpeg)
Box, slide
1973.0423.005
![...](https://files.ingeniumcanada.org/items/coll/291/472/1973-0423-006-aa-cs_thumb.jpeg)
Screen, projection
1973.0423.006
![...](https://files.ingeniumcanada.org/items/coll/291/464/1973-0423-007-aa-cs_thumb.jpeg)
Lens
1973.0423.007
1973.0423.001
1973.0423.002
1973.0423.003
1973.0423.004
1973.0423.005
1973.0423.006
1973.0423.007