Heath's Greatly Improved and Enlarged Infallible Government Counterfeit Detector At Sight publidhed by authority from the United States Treasury Department (1867, second edition) 39pp. with 17 plates; also 1873 revised fourth edition and 1878 12th. pocket edition. The plates comprise genuine designs from the original Government plates, the 1867 edition includes prints of fractional currency. Some minor staining or wear