NEW! Impeller 15963 Bronze 15-5/16" OD, 2-7/16" shaft, 7-vane, Johnston? Pump

Description

Impeller 15963 Bronze 15-5/16" OD, 2-7/16" shaft, 7-vane, Johnston(?) Hot Well Pump.
Eight (8) available.  Price is for One (1).
These were purchased at surplus property auction of Jacksonville (FL) Electric Authority.  Brand New - never used, New Old Stock.
Not sure of exact brand or model number, but stock tags said "Impeller for Hot Well Pump", or "Johnston Hot Well Pump".  Numbers written on side are just internal stock numbers.
Most are stamped "15963" on hub.  One or two are stamped "2811 2", but all appear to be identical in size.  One is painted with a Red coating on the inside.  Please specify if you have a preference in stampings or coating.
Seven Vanes.  Hub diameter is 2-7/16".  Outer diameter is 15-5/16".  Secondary diameter (top machined side) is 11-27/32".  Four small threaded holes on hub.  Weight is about 75 pounds each.  Solid Bronze.  All measurements made with ruler to best of my ability - check photos.  I can possibly measure with calipers if needed.
Composition:
All are "Bronze", but different grades.  I am not a metallurgist, but I am a chemist and have access to a portable XRF analyzer.  I have tested these and found that they are actually made from 4 slightly different bronze alloys.  If you have a preference, let me know.
*Four analyzed as C922 (Pb, Sn Bronze), I have these labeled as units 1, 6, 7, and 8. (8 is the one with the red coating inside).
*Two analyzed as C614/623 (Al Bronze), I have labeled these as units 3 and 4.
*One showed as an unrecognized alloy (87Cu, 5Ni, 4Fe, 2Al, 1 Mn 0.5S), unit 2.
*One showed as an unrecognized alloy (83Cu, 10Sn, 5Zn, 1.5Pb 0.5Fe, 0.5Ni), unit 5.
All measurements approximate and not guaranteed.
I am attempting to find more information about these including what pumps they will actually fit.  Please contact me if you can help identify!
Individual units will ship by FedEx Ground (please give Commercial Address).  If you buy 3 or more, we will ship by Truck Freight.
Local pickup in Gainesville, Fl available.
Buy more than one and $$$$$$SAVE.
If you Make Offer, please indicate Quantity, offer price (per unit), and Shipping Zip Code.
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