Mesker #2,000 came in December, 2011, #3,000 in June, 2013, and #4,000 in June, 2015. Three years later and fourteen years since the launch of the 'got mesker?' initiative through the Illinois Historic Preservation Agency (now the Illinois State Historic Preservation Office in the Department of Natural Resources), the 5,000th building with Mesker-manufactured components has …
