Round, square centre hole, inner and outer rims on both sides, 4 characters on obverse, character on reverse; canh hung thong bao in Chinese characters, read top-bottom-right-left on obverse; reverse has character trung (middle) at top; extra metal in centre hole.

Round, square centre hole, outer and inner rims on both sides, 4 characters on obverse, 2 characters on reverse; canh hung thong bao in Chinese characters, read top-bottom-right-left on obverse; reverse has characters son tay (province name) right-left.

Round, square centre hole, inner and outer rims on both sides, 4 characters on obverse, character on reverse; canh hung thong bao in Chinese characters, read top-bottom-right-left on obverse; reverse has character trung (middle) at top; extra metal in centre hole.

Round, square centre hole, inner and outer rims on both sides, 4 characters on obverse, character on reverse; canh hung thong bao in Chinese characters, read top-bottom-right-left on obverse; reverse has character tay (west) at bottom; extra metal in centre hole.

Round, square centre hole, inner and outer rims on both sides, 4 characters on obverse, character on reverse; canh hung thong bao in Chinese characters, read top-bottom-right-left on obverse; reverse has character trung (middle) at bottom; extra metal in centre hole.

Round, square centre hole, inner and outer rims on both sides, 4 characters on obverse, dot on reverse; canh hung thong bao in Chinese characters, read top-bottom-right-left on obverse; reverse has dot at left-bottom; extra metal in centre hole

Round, square centre hole, inner and outer rims on both sides, 4 characters on obverse; canh hung thong bao in Chinese characters, read top-bottom-right-left on obverse, with right character abbreviated, and bottom character in grass script Krause, C.L. and Mishler, C.: Standard Catalog of World Coins, 1701-1800 and 1801-Present. 1994 editions; Novak, J.A.: A Working Aid for Collectors of Annamese Coins. 1989

Round, square centre hole, inner and outer rims on both sides, 4 characters on obverse; canh hung trung bao in Chinese characters, read top-bottom-right-left on obverse; reverse worn almost flat; reverse hole is off-centre.

Round, square centre hole, inner and outer rims on both sides, 4 characters on obverse; canh hung thuan bao in Chinese characters, read top-bottom-right-left on obverse; reverse worn almost flat.

Round, square centre hole, inner and outer rims on both sides, 4 characters on obverse; Thai duc thong bao in Chinese characters, read top-bottom-right-left on obverse; reverse worn almost flat.