A transparent glass plate well polished and marked by the photo-printing technique. It provides very accurate readings and it is a helpful tool for the stereo viewer.
| Glass Scale |
Thickness |
Width |
Length |
Marking |
Increment |
| Type |
mm |
mm |
mm |
area mm |
mm |
| 50 |
3 |
25 |
80 |
50 |
0.1 |
| 100 |
3 |
25 |
140 |
100 |
0.1 |
| 200 |
3 |
25 |
220 |
200 |
0.1 |
Thickness: 3mm.