1947 Surcharges on First Print Chairman Mao
unused Block of Four The surcharge set of eight in blocks of four plus $100 on $1 surcharge inverted, $50 on $2 and $100 on $1 misplaced surcharge, also in blocks of four

Details
unused Block of Four The surcharge set of eight in blocks of four plus $100 on $1 surcharge inverted, $50 on $2 and $100 on $1 misplaced surcharge, also in blocks of four
Yang NE36-43, US$900+, JPS DB28-35