Lest anyone wax melancholy about how expensive ammunition is today versus 1902, let's recall that the average wage back then was a princely $474 a YEAR. A case of 1,000 .38 S&W rounds for $13.50 in 1902, adjusted for inflation is $352.59 in 2012.
EDIT: tjhaile what calculator are YOU using!? $22 in 1902 is $574.59 in 2012. http://www.westegg.com/inflation/