Wild Heerbrugg optical squares (4)
Wild pentagon single and double angle prisms acting as optical squares. Obtained from Germany and the Netherlands
Product details: Wild Heerbrugg optical squares (4) | Wild Heerbrugg | Squares | Survey |
Four different pentagon prisms that allow setting out of 90 degree angles. Two of these are actually double 90 degree angles, allowing to set out a 90 degree angle both left and right at the same time (making a line crossing at straight angles rather than a single straight angle). With the exception of the modern, plastic, one, they are all metal (brass or aluminium).
I also have a fitting plumb staff for these optical squares which fit the metal ones and can be broken down in sections.
Other collections / more information:
Wild pentagon
Data sheet
- Type of use
- Home / hobby
Survey
8 other products in the same category:
Wild pentagon single and double angle prisms acting as optical squares. Obtained from Germany and the Netherlands
Product details: Wild Heerbrugg optical squares (4) | Wild Heerbrugg | Squares | Survey |