PERCEPTIONS SCIENTIFICA
Dale Beeks is one of the top dealers in scientific instruments. He has sold many high quality surveying instruments over the years, and he is one of the most knowledgeable dealers in surveying instruments.
Dale issued printed PERCEPTIONS SCIENTIFICA catalogues from 1985 to 1991. These catalogues contain some great surveying instruments - two solar compasses, four solar transits, and many very scarce non-solar transits and compasses.
Dale very graciously allowed us to reproduce his printed catalogues below. While the files are a bit large (about 600k each), they are well worth the wait. The catalogues contain a nice picture and a great description of each instrument. Thus, the catalogues are a very good resource for experienced and novice collectors alike.
Dale has extensive knowledge of antique surveying instruments. If you are interested in buying or selling surveying instruments, he should be on your short list of people to contact. To send an email to him, click here: Dale Beeks
CATALOGUES
The above catalogues are scanned copies of the originals - pictures and descriptions are reproduced in full. If you want to see only a picture and price of the instruments contained in the catalogues (no descriptions), please click on the instruments below. PLEASE NOTE THAT THERE ARE MORE INSTRUMENTS IN THE CATALOGUES THAN LISTED BELOW.
Solar Instruments
| Gurley Solar Compass | Gurley Schmoltz Solar Transit | Gurley Recon Solar Transit |
| Gurley Exploration Solar Transit | Gurley Burt Solar Compass & Scope | Buff Solar Mining Transit |
Transits
| B. Pike & Sons Transit | Blunt Transit | Roach Transit (San Francisco) |
| Buff & Berger Transit | Beckman Telescopic Compass | A. Jeffrey English Mining Theodolite |
| Gurley Mining Transit | ||
Compasses