France 100 francs Gaspard Monge KM-1203 Science PR 69 PCGS silver coin 1998

The 1998 France 100 Francs Gaspard Monge silver coin, KM-1203, honors the brilliant French mathematician and founder of descriptive geometry. Certified PCGS PR69, this exquisite Proof commemorative celebrates science, education, and revolutionary history. The obverse features a detailed portrait of Gaspard Monge with swept-back hair, expressive eyes, an embroidered military-style uniform, and a high collar. Behind him stands a classical domed building with columns and a triangular pediment, accompanied by RÉPUBLIQUE FRANÇAISE, GASPARD MONGE, and 1746–1818. The reverse displays a striking geometric composition with a large X, triangle, mathematical symbols, dotted construction lines, an N with superscript X and Y, a small botanical branch, 100F, 1998, and LIBERTÉ ÉGALITÉ FRATERNITÉ. Monge revolutionized geometry and helped establish the École Polytechnique. Combining mathematical elegance, historical significance, and superb PR69 quality, this silver coin deserves a place in your collection!

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