1986 Switzerland 1/2 Unze Gold Eternal Pact Proof

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Struck in Switzerland by the renowned Argor-Heraeus refinery, this 1986 gold proof round commemorates the historic Swiss alliance known as the Eternal Pact. Crafted with a high purity of 0.9999 fine gold, the piece contains exactly one-half troy ounce of precious metal, combining Swiss manufacturing precision with deep national symbolism. The obverse of the round features the classic personification of Switzerland, Helvetia. On the reverse, the design depicts three men who represent the historic figures of the Eternal Pact, symbolizing unity and alliance. This side also displays the year 1986 alongside the weight and fineness inscriptions, reading "1/2 UNZE 999,9", accompanied by the official mint stamp.