NOS LEEDS & NORTH "Constantan" Wire, 30 Gauge Brown & Sharpe, About 735'(?)

Description

For sale is a vintage partial spool of LEEDS &  NORTH "Constantan" Wire.   It was left behind in the electronics supplies inventory of my late father.   He was an active HAM radio operator for 70 years, and was a radio and other electronics serviceman for much of his life.  He always kept a good inventory of spare parts and components on hand for quick repairs or handy for his own projects.   Looks like he started this roll, but left a good deal of wire.   It is 30-1-1 gauge, Brown & Sharpe.
"Constantan" wire is a copper-nickel alloy with trace amounts of magnesium, carbon and iron.
It is always tricky figuring out how much wire is left, but with the tare weight listed, it gives us a good start.  The spool of wire weighs 0.63 pound.   The tare weight of the spool is 0.19 pound, so we should have about 0.44 pound of wire left.   (The original spool was 0.50 pound.)    I see on line that 33 feet is 8g (0.02#), so I figured from there.
I hope that this is wire that you would love to add to
your
electronics supplies cabinet!!
Thanks for looking here!
(wire box #2)