Bidspirit auction | 80. INTERNATIONAL SOCIETY OF TWENTY

80. INTERNATIONAL SOCIETY OF TWENTY SIX (26) - 80. INTERNATIONAL SOCIETY OF TWENTY SIX (26) POSTMASTERS FIRST DAY COVER COLLECTION WITH SOLID SILVER. A collection of sterling silver medallions (.74 troy ounce pure each) with first day cancellations from various countries. All dated in 1975.