| Name and Model Number | Morris University StudentMade Slide Rule |
| Country of Origin | USA |
| Date of Manufacture | 1937 |
| Front Scales | Special |
| Back Scales | None |
| Scale Length | 30 cm |
| Type of Rule | Slide Rule |
| Construction | 35.5-cm x 6.4-cm maple wood. Scales hand inked. |
| Area of Use | Technical |
| Comment | Fuel consumption of an internal combustion engine.Made by a Univ. Michigan Mechanical Engineering student as a requirement for a Graphics course. Marked Graphics M.E. 326c, Slide Rule #4, submitted by Mark M. Morris, July 10, 1937. Formula, variables & constants on reverse. This is a one of a kind slide rule. |
| Rarity | RRRR |
| Donor | Collection of Ed Chamberlain |
| Match Number | 183 |
| 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. |