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special purpose, military and unusual slide rules
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For an explanation of the Condition Codes, refer to: Condition Codes.
For a listing of USPS shipping insurance rates:
USPS insurance rates.
Please reference the item number in all correspondence.
Shipping will be added to all transactions.
Unless a fixed charge is indicated.
Insurance is optional.
Email: for-sale //-at-// this web site
Following is the condition description system originated by the Dutch
Circle of Slide Rule Collectors
and also used by The Oughtred Society.
This system will be used on this site.
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Mint condition with all extras such as box, case and instruction manual present also in mint condition, factory clean. |
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Mint condition with all extras such as box, case and instruction manual present but these extras are not in mint condition. |
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Mint condition but without one or more of the extras. |
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Very minimal signs of use (first impression is that it is new but by careful inspection you find a slight scratch). |
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Minimal signs of use ( say on the back side on end plate one can see it was used, otherwise very nice). |
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Signs of normal use (one third of all rules are C5). |
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Signs of heavy use (ugly but not damaged). |
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Small damage but for the rest C4 quality or better.* |
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Damaged and well worn.* |
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New In the Box (NIB) or sometimes called Mint In the Box (MIB). These slide rules are the hardest to find. They look as if they just left the factory. And they are in the original packaging. Due to long storage (it could be up to 30 or 40 years), the boxes will show some 'shelf ware'. That is there may be some scuffing on the boxes, or some slight 'browning' of the paper. The manuals may have a permanent crease as a result of being folded in half for all these years. The number of these NIB or MIB slide rules decreases each year. |