Medal fitted with original silk corded riband, and 9mm crimp brooch mounting bar. This latter with hallmark 'Graco-GI' on reverse, and the brooch retaining it's hinged pin & intricate drop-lock clasp fittings on reverse as issuedThe NASA Exceptional Scientific Achievement Medal (abbreviated as ESAM) was established by NASA on September 15, 1961, when the original ESM was divided into three separate awards. Under its guidelines, the ESAM is awarded for unusually significant scientific contribution toward achievement of aeronautical or space exploration goals. This award may be given for individual efforts that have resulted in a contribution of fundamental importance in this field, or have significantly enhanced understanding of this fieldScarce seenA choice example with superb gildingCondition: EF