Hungary - 261

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261
Hungary 1977
250th Death Anniversary of Isaac Newton
March 31, 1977
Newton, Refraction of Light by a Convex Lens; Illustration from <i>Principia Mathematica</i>
Newton, Refraction of Light by a Convex Lens; Illustration from Principia Mathematica
(4 × 3)ft multicolored
Newton, Refraction of Light by a Convex Lens; Illustration from <i>Principia Mathematica</i>
Newton, Refraction of Light by a Convex Lens; Illustration from Principia Mathematica
(4 × 3)ft multicolored
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