Shown below is a soldering copper. Good ones are increasingly rare; what has survives the sieve of time tends to be wobbly-topped, or chewed-up by harsh flux, or just beat-up. This one is none of those things. It has a nice copper tip, solidly attached to the steel haft. Stamping on the tip reads "THE ELECTRIC MATERIALS CO. NORTH EAST, PA." (Still around, with over 90 years in the business.) Plus a very large "2" which is probably tip weight in pounds.
Proper use is something of an art -- keeping the tip hot but not too hot and not so sooty you cool it down wiping it clean is the kind of thing that can be learned only by the doing. But zillions of electricians and radio-minded people did, once upon a time. (According to their FAQ, The Electric Materials Co. will still make you soldering coppers (PDF!), though they have a $200 minimum order, which would be more than "several" even at current copper prices plus other materials and manufacturing costs and their profit.)
My lodger and friend Tam found this one at an antique shop in New Hampshire and brought it home as a gift. Good choice!