Whistle Blasts for Fires In the days before a centralized fire alarm system, coded whistle blasts would warn when and where a fire broke out. Similar Images ...based on the tags: signs, stencils... One of the storage bunkers was cracked open. I wonder how effective this heavy door would actually be… I expect, not very. An abandoned gatehouse bearing the name of the former factory. An old stoker in a power plant that was abandoned long before the mill next to it, by all indications. Sugar mills burned dry beet pulp pellets for fuel. In the women’s restroom. The old No Trespassing sign, with the Peavey logo still on it. Power-up to cool down… would have been nice on the hot day I climbed on top of this machine. Shelves in in the coloring department, where hundreds of different mixer lids are splashed with hardened glass dyes. Color thanks to a yellow-tinted skylight. Silverton’s elevator, pictured here, is still active.