File:Heath's Greatly Improved and Enlarged Infallible Government Counterfeit Detector, At Sight (IA heathsgreatlyimp2p4bheat).pdf

Variety 2-P-s-4(b): Heath Counterfeit Detectors varied from edition to edition, and noted Numismatist Eric P. Newman, whose collection this particular Counterfeit Detector is from, developed a classification system to compare and describe their variety. This particular variety is described as follows: Second edition printed on title page and Introduction; Pocket size; 1866 copyright date; Cover with 6 line gold lettering in side wise position and containing either correct July 2, 1867 or incorrect July 12, 1867 patent date; Last nine characteristics of Type 2-P-h; Treasury letter dated September 3, 1866 sometimes inserted; 2 fractional currency plates described on page 27 are present; Half of face and back of $5 National Currency note described on page 17 is present; Folded impression of captured counterfeit plate of $100 First National Bank of Boston is present; Page 33 is expanded to refer to 4 magnifying glass figures which are present; Modification of plate numbers accomplished by printing large plate numbers over existing plate numbers in order to use up remainders of first edition plates; Latest endorsement date is January 15, 1867; Microscope illustrations cover 4 pages.