Hyla A Troxell.  New York, 1982.  American Numismatic Society, Numismatic Notes and Monographs series, No 162, 1982. HB. xx + 255 pages + 44 plates.  152 x 230 mm.

This is the standard reference work on this interesting and plentiful series.

Spine slightly faded, no dj, as published, cover shows slight signs of handling. Contents virtually as new.