I would say the 20 ounce version of the head by trying to weigh with handle attached.

Print is barely there on head but the nail holder helps identify.

The brass pipe handle is from somewhere around 1925 and stamped Bridgeport Plumrite Standard, It was used in homes during that time.

It is solid, very tight although I have never used it.

Not sure there is another one or if anyone even cares, kind of a frankenstein, kinda cool, certainly old and someone did a decent job of putting it together.

SEE photos.