Optics: measuring and testing – Standard
Patent
1977-10-17
1980-03-04
Corbin, John K.
Optics: measuring and testing
Standard
35 50, 356394, G02B 2700, G09B 2500
Patent
active
041914724
ABSTRACT:
A method and apparatus for evaluating coins on an objective basis. A support structure displays facsimile coins representative of the obverse and reverse sides of a given class of coins. The facsimile coins within the obverse and reverse groups are further divided into sets. Each set contains facsimile coins representative of a particular type of coin defect or imperfection. The facsimile coins within a set are arranged according to increasing or decreasing extents to which the coin defect is exhibited. Each of the facsimile coins has assigned to it a number representative of the relative value of the facsimile coin in regard to that particular coin defect. The obverse and reverse sides of a test coin are compared with the facsimile coins within each set. The numeric values of the facsimile coins which exhibit the coin defects to the same extent as the test coin are noted and summed to arrive at a total numeric value for the coin. The monetary value of the test coin is then determined by a table which correlates the total numeric value of the test coin with its monetary value.
REFERENCES:
patent: 824374 (1906-06-01), Munsell
patent: 2571188 (1951-10-01), Benson
patent: 3609045 (1971-09-01), Stein
Kelly et al., "The ISSC-NBS Method of Designating Colors & Dictionary of Color Names," National Bureau of Standards Circular 533, 11-1-55, Taken from Color, Universal Language & Dictionary of Names, N.B.S. Special Publication #440, 12-1976, pp. 5-8.
Corbin John K.
Punter Wm. H.
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