Round, 4-sided hole in centre, rims around outer edge and centre hole, obverse 4 characters, no writing on reverse. Yuanfeng tongbao (top-right-bottom-left) in grass script Chinese characters on obverse; reverse off-centre. Extra metal in centre hole.

Round, 4-sided hole in centre, rims around outer edge and centre hole, obverse 4 characters, no writing on reverse. Yuanfeng tongbao (top-right-bottom-left) in grass script Chinese characters on obverse; reverse inner rim has extended thick corners. Reverse off centre.

Round, square centre hole, inner and outer rims on both sides, 4 characters on obverse, dot on reverse; nguyen phong thong bao in Chinese seal script characters, read top-right-bottom-left on obverse; reverse has dot at bottom; slip in casting on reverse.

Round, square centre hole, outer and inner rims on both sides, 4 characters on obverse, lines on reverse; nguyen phong thong bao in Chinese seal script characters, read top-right-bottom-left on obverse; reverse worn almost flat; reverse appears to have lines- horizontal at bottom and vertical at left.

Round, 4-sided hole in centre, rims around outer edge and centre hole, obverse 4 characters, no writing on reverse. Jiayou tongbao (top-bottom-right-left) in seal script Chinese characters on obverse; worn almost smooth on reverse. Characters small except left, which is large. Centre hole twisted.

Round, 4-sided hole in centre, rims around outer edge and centre hole, obverse 4 characters, no writing on reverse. Jiayou tongbao (top-bottom-right-left) in seal script Chinese characters on obverse; worn spots on reverse. Small script size, inner hole off centre.

Round, 4-sided hole in centre, rims around outer edge and centre hole, obverse 4 characters, no writing on reverse. Jingyou yuanbao (top-right-bottom-left) in seal script Chinese characters. Irregular centre hole.

Round, 4-sided hole in centre, rims around outer edge and centre hole, obverse 4 characters, no writing on reverse. Jiayou yuanbao (top-right-bottom-left) in seal script Chinese characters. Small script size, extra metal in centre hole.

Round, 4-sided hole in centre, rims around outer edge and centre hole, obverse 4 characters, no writing on reverse. Jiayou yuanbao (top-right-bottom-left) in seal script Chinese characters on obverse; reverse rims worn almost smooth. Small script size, extra metal in centre hole.

Round, 4-sided hole in centre, rims around outer edge and centre hole, obverse 4 characters, no writing on reverse. Xining zhongbao (top-right-bottom-left) in informal orthodox script Chinese characters. Small script size.