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| | What's in a Name? Odd slide rule variations |
 | | Many rules that are marked quite differently are in fact the very same rule from the very same factory, and many rules that are marked the same are really quite different. |
 | | This rule appears as a laminated rule with revealed wood edges, and as a fully laminated rule with covered edges, as well as with every possible kind of K+E case (fl hardboard, fl leather, green leather, orange leather), numerous slightly different scale sets, and at least three different kinds of cursor. |
 | | They designed a very interesting circular rule, the Data Center, which was rectangular, had a circular rule on the face, rulers along the sides, conversions to periodic tables on the rear face, and a pull-out double-sided data card that had industry specific information. |
| www.sphere.bc.ca /test/whatsinaname.html (998 words) |
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