Check the listing for details. Sonderrechenstab SR 701 Slide Rule with Paper Case - Made in Germany. Condition: Used. Listed at 37.97 USD. This is a vintage Sonderrechenstab Maschinenzeit SR 701 M slide rule with paper case. It is made in Germany. There is discolouration to the plastic and a slight stickiness. The discolouration along with the general condition of the item can be seen in the photographs. If you have any questions please ask. Please also look at the other items I am selling. I aim to add new listings most days. If you are interested in more than one item I will combine postage wherever possible. If I have excluded your postal location and you are interested in an item please message me for a postage quote. PLEASE NOTE: It is against e-bay policy to give out contact details before a sale has been agreed. Even responding to such a request can result in e-bay stopping me from trading and closing my account. So, please don't ask! Thank you.