- Political & Science
The most expensive item with a signature of Gloria Swanson (Gloria Swanson, Cecil B. De Mille Signed Portraits Celebrating Sunset... Lot 267) so far was sold in December 2015 for $420.00 while the cheapest item (Gloria Swanson silent movie star signed studio photo) found a new owner for $5.50 in March 2008. Sold items reached their highest average selling price in April 2013 with $125.50 and the month that saw the lowest prices with $26.99 was November 2008. In average, an autographed item from Gloria Swanson is worth $26.99.