In recent years with growing collection hot in the antique market collection of ancient COINS investment is with unique charm to attract public investment fans rare ancient COINS coin auctions are often spread around auction prices reached new highs outfits and various kinds of hot money in the society also want to participate in the collection of ancient COINS investment. The currency to 'made in hunan province when ZhiQian twenty coppers' a double flag the copper coin positive designs for the central cross flag above as the "hunan province to build" four words as a value below: when ZhiQian twenty. The back pattern is a grain of rice surrounded by English labeled "TWENTY CSH". This coin the remaining amount is not much has the very high collection value and investment the green rust also witnessed its historical s deposit it is not hard to see it clearly the history of the transitional characteristics of the copper coin although through vicissitudes of life but the lines are still faintly visible words can't describe a collection of investment value.