Full Details

Name and Model Number Stanley & Co., Ltd
Whythe Complex Slide Rule
Country of Origin England (London)
Date of Manufacture c. 1960
Front Scales Graticule consisting of four quadrants of curvilinear coordinates (Argand diagram).
Back Scales Cursor scales: Logarithmically divided scales of modulus
Scale Length n/a
Type of Rule Cylinder
Construction Varnished paper graticule scale on moveable Bakelite tube with two Persplex cursors.
Area of Use Technical
Comment Fuller style calculator for complex number calculations in both polar and rectangular form.
Rarity RRR
Donor Collection of Dr. Paul J. Tarantolo Jr.
Match Number 210
(Click Picture for Details)

In conjunction with our 'donors' we assign a rarity rating to each item, based on the system devised by Herman van Herwijnen
(1929 - 2004), renowned Dutch collector, author, and creator of Herman's Archive, a collection of 5,000 slide rule images on CD.
• RR = Rare - 1 of 25 collectors has one; it may take a year to find an example in the marketplace.
• RRR = Very Rare - only a few known to collectors; may be several years before it comes up for sale.
• RRRR = Extremely Rare - a museum piece; unlikely that an example will come up for sale.