Is this wire all copper ? Or is it like a brass copper wire mix? I have about 20 pounds of unstripped wire . Just curious if it's all copper or not .

How to Sell Copper (with Pictures) - wikiHow

LET'S GO TO THE SCRAP YARD !!! (Copper Wire, Brass & Extruded Aluminum)

3ABCSTRX500 :: 3/0 Bare Stranded Copper Wire, 500 Ft. :: PLATT ELECTRIC SUPPLY

The Big Business of Scavenging in Postindustrial America - The New York Times

Copper Wire Half Hard 1 Lb Spool (20 Ga / 315 Ft.)

Anyone else collect scrap from work? Do yall think its worth it? : r/electricians

KabelDirekt – Pure Copper Stereo Audio Speaker Wire & Cable – Made in Germany – 16 AWG Gauge – 50 feet – (for HiFi Speakers and Surround Sound Systems, Pure Copper, with Polarity Markings) : Electronics

What can you do with an old copper wire? - Quora

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Tri-City Recycling

Scraping copper wire: how to sort, upgrade and tell which ones to strip or not for MAX PROFIT!

Stripping Copper Wire - Is It Worth?

How do I strip all of this wire easier? : r/AskElectricians