528 variety, CSS 774c, "Bars Omitted" 1943 surcharge of 50 cents with two vertical bars in red for Hupei on 16c. olive-brown, variety both surcharge bars omitted

528 variety, CSS 774c, "Bars Omitted" 1943 surcharge of 50 cents with two vertical bars in red for Hupei on 16c. olive-brown, variety both surcharge bars omitted