population of the city of pittsburgh; 1900-200
production of steel by USSteel Corportation; 1900-2000
population of greater metropolitan pittsburgh; 1900-2000
number of books in the carnegie public library system; 1900-2000
average number of rides on public transportation per resident; 1900-2000
percentage of immigrant population in the city of pittsburgh; 1900-2000
pittsburgh steelers win/loss percentages; 1900-2000
return to main image gallery
enamel on MDF
(each) 32 h x 30 w x 1.5 inches
2003