Full Details

Name and Model Number Flying Fish 1005 Stadia
Country of Origin China
Date of Manufacture c. 1960s
Front Scales Ln-1, Ln0, Ln1, A [ B, 1-cos theta, 1/2sin2theta ] D, Lg, ?, 1/60(1/360)
Back Scales K, AI, A [ B, tg theta/ctg theta, sin theta/tg theta, sin theta/cos theta, C ] D, ?, DI, P
Scale Length 25 cm
Type of Rule Slide Rule
Construction Plastic
Area of Use Topography
Comment The Flying Fish rules are the Cadillac of Chinese rules.
This one has several natural log scales.
Rarity RRR
Donor Collection of Clay Castleberry
Match Number 280
(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.