The complete set of commemorative stamps as issued by the US Post Office in 1930.  This lot includes Scot #682, 683, 688 and 689.   Stamps from this era printed on the flat press may have small spots of ink on the back side.  All stamps are mint, never-hinged, MNH.  Stock photo but all stamps will be at least F-VF centering.  

APS member #230012