3c 1851-57 Issue Plating Study from the Frank G. Ford Collection. Colossal plating study consisting of 3,782 stamps organized by plate in three stockbooks, incl. Nos. 10 or 10A (82), 11 or 11A (2,217), 25 (14), 26 (1,160) and 26A (286), plus a color chart showing shades by year of issue (23 stamps), several imperforate plates nearly complete with some duplication, wonderful range of shades and cancellations, plate varieties abound in this large study, condition mixed but many stamps are sound and attractive, a most impressive assemblage that took the owner a lifetime of study of this issue to accumulate and plate, Scott Retail more than $93,000.00