Vintage Pickett Transparent (Clear, Overhead Projector) Slide Rule, TRIG
Item History & Price
| Reference Number: Avaluer:600938 | Country/Region of Manufacture: United States |
Pickett Slide Rule, Unknown model made for use with an overhead projector.Pretty good condition. No obvious scratches or marks on the rule. Slide and cursor work fine. Case is likewise in very good shape. Snaps work. Inside the leather is cracking along the fold, but nowhere near breaking.No identifying marks (initials, numbers, etc.). I believe it was given to me by a fellow teacher when I used to actively collect slide rules. I'd love to know the mo...del number if anyone knows. PR-12 is the basic non-trig version, PR-13 is the Log-Log version, and this one could be ED-26, but I'm not sure of that.
Addendum: Here are three references that clarify/confuse the model number issue:
https://webmuseum.mit.edu/detail.php?module=objects&type=browse&id=5&term=Pickett+%26+Eckel&page=1&kv=157587&record=42&module=objects
https://www.sphere.bc.ca/test/pickett.html(Look for ED-26)
https://www.sliderulemuseum.com/Pickett.htm(Right at the top of the page, all three clear Pickett rules. One of them is labeled right on the rule).
Addendum 2: New pic showing a section from the 1968 Catalog, listing two projection rules, but not the basic one. Says the PR-12 is the Trig rule, but shows the basic rule marked as PR-12! (I think...)
Addendum: Here are three references that clarify/confuse the model number issue:
https://webmuseum.mit.edu/detail.php?module=objects&type=browse&id=5&term=Pickett+%26+Eckel&page=1&kv=157587&record=42&module=objects
https://www.sphere.bc.ca/test/pickett.html(Look for ED-26)
https://www.sliderulemuseum.com/Pickett.htm(Right at the top of the page, all three clear Pickett rules. One of them is labeled right on the rule).
Addendum 2: New pic showing a section from the 1968 Catalog, listing two projection rules, but not the basic one. Says the PR-12 is the Trig rule, but shows the basic rule marked as PR-12! (I think...)
