1964 Quarter Pattern - RB-1320, INCO
Strike TypeCoin Details
Description
An experimental quarter featuring the RB-1320 alloy from INCO's 1300-series, struck as part of the 1964 silver replacement evaluation program. This piece represents one of the later entries in the 1300-series sub-family, suggesting it may incorporate refinements based on performance data gathered from earlier compositions in the series. The International Nickel Company's systematic approach to alloy development — test, evaluate, refine, repeat — mirrors modern materials science methodology and produced the robust empirical foundation needed to support one of the most significant policy decisions in American coinage history.
Rarity Notes
Extremely rare experimental piece. Like all INCO 1300-series quarters, this composition is known from very few surviving examples.
Cross References
Reed-Brenner RB-1320; NGC census
External References
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Other Strike Types in This Series
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