There are LOTS of reproductions of this Masonic / Eagle flask around. Some have markings on the base, others do not.
I have noticed a fair amount of interest in the reproductions lately with prices at auction reaching near $100 in some cases. More typically, auction results are in the $25-35 range.
An authentic 19th century flask in this mold would fetch $500-600 in aqua or pale blue/green
