| Name and Model Number | Flying Fish 1018 |
| Country of Origin | China |
| Date of Manufacture | Unknown |
| Front Scales | lnI-1, lnI0, lnI1, K1, A1 [ B1, tg0/ctg0, sin0/cos0, C ] D, DI, ln1, ln0, ln-1 |
| Back Scales | θ°, Re, P', P [ Q, QI, L, I ] J, J', T, Ge |
| Scale Length | 25 cm |
| Type of Rule | Slide Rule |
| Construction | Plastic |
| Area of Use | Electrical |
| Comment | Gudermannian type hyperbolic slide rule with additional scales for electronics.
Richard Smith Hughes "The Flying Fish 1018 Gudermannian Slide Rule", Journal of the Oughtred Society Vol 15, No. 1 (2006) 59-60 |
| Rarity | RR |
| Donor | Photo courtesy of Jodie Hobson |
| Match Number | 382 |
| Thumbnail (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. |