#484 Used with Shermack type III and gauge 13 perfs, PSE Certificate # 01305655 PSE Certificate States: it is genuine used, with Shermack type III private perforations and privately applied perforations gauge 13 and a light diagonal crease. The item “#484 Used with Shermack type III and gauge 13 perfs, PSE Certificate # 01305655″ is in sale since Tuesday, June 13, 2017. This item is in the category “Stamps\United States\1901-Now\ Used”. The seller is “jerryconnollystamps” and is located in North Hollywood, California. This item can be shipped worldwide.