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1. Vintage Boxed Slide Rule. Well Used (pen Marks) In Good Working Condition

   Antique slide rule. Well used with pen marks on side (see pictures) but in full working order. Case has been mended

   eBay

2. Vintage Slide Rule Bundle x4 PIC Thornton With Cases English

   Good Used Condition as pictured.

   eBay

3. Otis King Cylindrical Slide Rule Calculator Model “K” (c.1950’s) Boxed X0783

   Used but good order. Original box and instructions. Box is sound. Instructions a bit creased

   eBay

4. Small Series 1 Slide Rule in plastic & wood Marked Classic made in England 15.5c

   Slide rule in good condition. Series 1 Classic made in England.

   eBay

5. Good, Used 10" Slide Rule, Motor, Volt, KW, HP

   eBay

6. 6" Slide Rule

   vintage 6" slide rule with reversible inner unknown brand

   eBay

7. Antique Keuffel & Esser 10" Polyphase Slide Rule Metal Glass Cursor Early Box

   Keuffel & Esser Co. Appld For” – Original Box – Immaculate Early Variant Pre Model #. The rule’s construction and markings point strongly to an early 1900s production run (circa 1905–1915), making it one of the more desirable Polyphase examples on the market.

   eBay

8. PIC 101 SLIDE RULE 1950’S RARE GOOD CONDITION - A G Thornton With Case.

   This PIC 101 slide rule from the 1950s is a rare and unique collectable scientific instrument. Made by A G Thornton and accompanied by its original case, this slide rule is a valuable piece of history for collectors of scientific memorabilia. With its intricate design and functionality, this item serves as a great reminder of the precision and craftsmanship of scientific instruments from that era.

   eBay

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