Pickett & Eckel Model No. 500
Ortho-Phase Log Log
(1951)
slide rule
slide rule
Click to view 300 dpi image.
ManufacturerPickett & Eckel
Model500
Serial No.01H1759
Scale length25 cm
Overall length30.8 cm
Width3.8 cm
Body/Slide materialsMagnesium, 4.0 mm
Post materialsStamped aluminum
Cursor materialsMachined aluminum (extended) / Plastic (plain, flat)
ScalesLL0 LL00 A [B T:T ST S:S] D K
L LL1 DF [CF CIF CI C] D LL3 LL2
AccessoriesClip-on magnifier
NotesInverted scale numbers marked with "<". LL1 - LL3 labels use subscripts, LL0 and LL00 don't.
Tag No.PE-500-21
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