By John Alexander, Collections Technician
jalexander@americanprecision.org
That’s exactly what happened when I came across a 1976 photo of a University of Vermont student perched high on a ladder, measuring one of the chimneys at the American Precision Museum. The question was: why?
At first, I assumed that the student was documenting the rear chimney as a reference for the front chimney’s restoration. A later discovery of another photo → showing the front chimney in seemingly good condition made me question that assumption. So, what was really going on?
A 1917 Sanborn fire insurance map provided further insight. It marked a 65-foot-tall chimney near the front of the building and indicated the switchboard room, now our lobby. The map also distinguished between brick and wooden structures; with pink indicating brick walls and yellow indicating wooden walls.
Look again at the 1974 photo which shows the front chimney before it was corbelled. It appears tall and intact, though a pile of bricks at the top raises more questions. I’m speculating that a mason piled those bricks up there to do work later. If so, why was the rear chimney being measured in 1976?
Adding to the mystery, the rear chimney, which was corbelled in 1909, no longer has that feature today. Instead, it has straight walls, and both chimneys are now covered in sheet metal to protect their flues from rain damage, allowing them to last longer.
While many pieces of the puzzle are coming together, some questions remain. Was the 1976 measurement simply for documentation, or was a larger project underway? What prompted the change from straight walls to corbeling on the front chimney?
History is never static—it’s a process of discovery. And sometimes, all it takes is a single photograph to set off an investigation.
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