1788 Massachusetts Cent. Ryder 16-M, W-6410. Rarity-5. Period after MASSACHUSETTS. Very Fine-20 Details—Surface Damage (PCGS Genuine).，A dark brown example with a thin film of detritus on the obverse surface, the reverse shows hard, glossy though corroded surfaces, but without diminishing the overall sharply detailed eagle. Though Rarity-5 today, this variety was inexplicably missed by Ryder in his original monograph and was first identified by W.P. Keller in the pages of <em>Colonial Newsletter</em> in 1961.，From the Michael Demling Collection of Massachusetts Cents.，
