Produced during the Japanese Occupation of China in Chungking (wartime capital of free China), there were only 125,000 produced. All have occasional missing perforation holes (skipped because of broken pins on the perforators) and most have mild toning. These are some of the ways you can tell counterfeits.Truly a bargain at today's prices. Attention Sellers - Get Templates Image Hosting, Scheduling at Auctiva. The item "China 1944 Republic War Refugee Souvenir Sheet MNH E670" is in sale since Sunday, April 18, 2021. This item is in the category "Stamps\Asia\China". The seller is "gandalf_the_stamp_man" and is located in Puyallup, Washington. This item can be shipped worldwide.