MA 80M 1
Photo taken by Chester Gehman in May 2017
BH Photo #392157
Its a tough call as it is a pretty generic plate design, but I'd be inclined to go with RF Hawkins just as they were a larger fabricator, and the design looks similar to this one that UMass Amherst has, although I wish there were better pictures:
This is a photo of the only remaining plaque on the bridge. "Springfield" "Mass" and "1891" are fairly obvious. Can anyone identify the builder? The R.F.Hawkins Iron Works and The Springfield Iron Works come to mind. A better view of the shape of the plaque is in the MACRIS photo. Any ideas?