West German field suspenders from the Cold War Era. Popularized by post-apocalyptic costume maker Dmitri Zaitsev (Nuclear Snail Studios). Increasingly rare.
The Type B suspenders have longer, more low-profile clips and squared D-rings.
If you're taking them apart, please note that each set comes with 5 clips, 4 D-rings, 2 hooks, and a large circular ring.
(This is military webbing gear designed to be clipped to a pistol/webbing belt. Will not work well for holding your pants up.)