Xian feng - Board of Revenue 50 Cash

Ch'ing Dynasty, Xianfeng, issue of the Board of Revenue mint in Beijing, June 1853 - Feb 1854. Square characters, Brass 50 cash. 'Er bao', seven stroke 'bei', protruding head 'boo.'
OB: Xian feng zhong bao (The heavy coinage of Xianfeng)
RX: Boo chiowan (Hu Pu, l,r); Dang sushi (t,b, value 50). Hartill (' Qing ') type L1.BRN # 5.245; Hartill# 22.704
A bit heavy at 69.3 gm; 56 mm