See I'm almost wondering if it wasn't a new design for the Denver that was sold to Interstate Machine by Dillon Box Iron Works inorder eliminate sirens from their product line.
Or possibly a prototype to the M seriesChicagosiren-hunters wrote: ↑Mon Jul 09, 2018 2:25 amCould that possibly be a prototype Quadruplex, just adding on shrouds simmilar to that of a Sterlng M??
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