Pickett 905-ES \"A\" 10\" \"TEXAS SPEED RULE\" Slide Rule with case


Pickett 905-ES \

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Pickett 905-ES \"A\" 10\" \"TEXAS SPEED RULE\" Slide Rule with case:
$49.99


Here is aPickett 905-ES \"A\" 10\" \"TEXAS SPEED RULE\" Slide Rule with case. This slide rule is in nice shape, made of aluminum. There are no bends, dings or problems with it. The paint is all good and the case is in fine condition, with no separations or wear. There is a some dirt or scuffing under the cursor (see the last picture, which, in my opinion, actually makes it look worse than it appears in real life) which would require unscrewing the cursor to clean, but I will leave that to the next owner. Some Novus No. 2 would buff it right out. The slide and cursor move easily.
This is a rather rare slide rule. According to the site sliderules.info, \"Every year until about 1980 a slide rule competition was held in the State of Texas (US). The contestants had to complete a series of calculations in 30 minutes. As the competition was timed there was a premium on speed but the marking system also required high accuracy. If the answer was accurate to three place of decimals, three points were awarded but if the answer was off by more than 2 places in the third significant figure no marks were awarded. Whilst other rules were allowed, and were used, the Pickett \"Texas speed rule\" was most popular.\"
Postage will be free for First Class mail to any address inside the U.S. and at my cost for any address outside the U.S. for First Class International postage. I welcome international buyers, but please contact me prior to offerding if this book is to be sent to an address outside the U.S. to get an exact postage cost. Payment will be by Paypal unless other arrangements are made with me prior to offerding. Our little town post office is closed on Saturdays, so, if the sale ends onFriday afternoon or Saturday morning,the winning buyer\'s package will be mailed on the Monday after the sale is concluded. I will notify the winning buyer at the conclusion of the sale by Paypal invoice. Good luck!

Pickett 905-ES \"A\" 10\" \"TEXAS SPEED RULE\" Slide Rule with case:
$49.99

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