Year/Period |
ca. 1950 |
Maker |
BLEEKER |
Country |
The Netherlands |
Signature |
1e: I B U / 6×24 // DR C.E. BLEEKER / UTRECHT // 6707
|
Category |
Other optical equipment |
Subcategory |
Binoculars |
Optical 1 |
Compound |
Optical 2 |
Achromatic |
Donated by |
P.P. de Bruijn, Zeist, the Netherlands (the 2500) |
Inventory number |
SM 150 |
The 2500 has been donated to the Foundation by Peter Paul de Bruijn.
Thread counter
BLEEKER
1955-1965
Folding magnifier
ONBEKEND/UNKNOWN
1920-1950
Universal refractometer after Abbe
BLEEKER
1950-1960
Porro prism binocular 6×30
BLEEKER
ca. 1950