1917, US, 10c, Used, Benjamin Franklin, Sc 510, Perf 10 at Bottom This is the only one 10c i found with perf 10 at bottom. The 1st known i found. Sometimes big discounts, Try To Make Offer. You pay only one. Just wait for my invoice or Request total before pay! If you’ll need anything from Hungary, just ask and we will try to find it for you! Check out my other items. The item “1917, US, 10c, Used, Benjamin Franklin, Sc 510, Perf 10 at Bottom” is in sale since Sunday, April 30, 2017. This item is in the category “Stamps\United States\1901-Now\ Used”. The seller is “stampbundle” and is located in Budapest. This item can be shipped worldwide.