NAC – NUMISMATICA ARS CLASSICA, Zurich. Auction n. 1 del 29-30 March 1989 – Antike munzen, Iberische progungen. Placchette e medaglie dal XV al XX secolo. Lots 1039. The number 1 of this prestigious serie is very difficult to trace on the market because it is issued in a limited number, it is highly sought after and is missing in many numismatic libraries. Extremely rare