| Name and Model Number | Concise Stadia Slide Rule |
| Country of Origin | Japan |
| Date of Manufacture | Manufactured until the 1990's |
| Front Scales | C C' S T1 T2 ST |
| Back Scales | D sin cos cos sq |
| Scale Length | 24 cm (9.5 inches) on the longest scale |
| Type of Rule | Disc |
| Construction | White plastic |
| Area of Use | Topography |
| Comment | Used for stadia formula calculations. It is amazing that this rule was still in producton in the 1990's while stadia sureveying pretty much went out in the 1950's and 1960's
|
| Rarity | RR |
| Donor | Collection of Clay Castleberry |
| Match Number | 363 |
| 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. |