I will gladly answer any question about it. Please look at my oter items. The item "Sealed Brand New Sun Hemmi No. 130 System Darmstadt Bamboo Slide Rule Vintage" is in sale since Friday, November 17, 2017. This item is in the category "Collectibles\Science & Medicine (1930-Now)\Engineering\Slide Rules".The seller is "richme100" and is located in Israel. This item can be shipped worldwide.