China 1932-48 General Issues 1940-41 East Szechwan 2nd Surcharge 3¢ on 5¢ Dr SYS Dah Tung Unwatermarked, full sheet of 200 with very light surcharge characters, later hand-surcharged resulting in at least 28 stamps with double surcharge variety, light gum toning and split into two half sheets of 100. Estimate HK$ 4,000-5,000
