Power steering pump and pulley

It is a Federal pump (sometimes termed "Chrysler"). The Saginaw pump looks very different, with a larger oblong reservoir (also used on GM's). The brackets are different.

The TRW pump looks very similar to the Federal, but yours cannot be a TRW because there are no brackets for it to mount on your ~1971+ aluminum water pump. The TRW was only used on earlier engines w/ the cast-iron water pump.

See Bouchillon's website for photos of all and the brackets they sell.

The Saginaw pump is actually preferred because more efficient and more available (aka Chevy). But, to change to it requires different brackets and probably different hoses since the fittings varied between pumps and years (some were inverted flare, later ones O-ring).