7 Dwyer 1 inch model 300 SIGHT FLOW METER Functional or 21 pounds scrap bronze

Description

Here are 7  used bronze sight flow meters
MIDWEST SIGHT FLOW METER by DWYER
they  have a plastic paddle wheel ( one shown in picture) inside. the wheel moves freely in the units.
the glass lens is fogged  from use, a cleaning with a light acid or CLR should make them usable and seeable again
I removed these   many years ago from a groundwater treatment pumping station pulling out gas  tainted water from an old filling station. I  would not use them for drinking water, but for  irrigation or  some other process water.
about  3 pounds each, total weight  is 20 pounds of bronze
shipped in a priority mail flat rate box