| Name and Model Number | Unique Chemical Slide Rule |
| Country of Origin | England |
| Date of Manufacture | 1950s |
| Front Scales | LU, A |B ,CI ,C (C includes molar masses) |D, LL |
| Back Scales | none |
| Scale Length | 10" (25 cm) |
| Type of Rule | Slide Rule |
| Construction | Plastic on bamboo? |
| Area of Use | Chemical |
| Comment | May contain historical data or dimensions etc.
If not used please leave blank. |
| Rarity | RR |
| Donor | Collection of Louis J. Gotlib, USA |
| Match Number | 37 |
| 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. |