I agree that it is a flat spring relay. From the end shown, the wire-spring relay would have what appears to be squared-off twisted wires as pins (squared-off to serve as wire-wrap pins). This one shows flat springs narrowed to make the pins for the wire-wrap connections.
Flat spring contacts (easier to see from the other end) have one or two silver contact buttons spot welded onto the springs. The two contact ones are better at controlling bounce pulses, and will have a slot cut between the two contact points so each applies force independently.
The wire spring relays have two spring wires for each contact, each making contact on its own with a rectangular stationary block (secured on the end of a stiffer single wire), and usually two more making contact from the other side depending on which direction the magnetic arm is in at the moment. The contacts are all moved by a single phenolic frame with notches for each of the wires.
The function of the first one explains why it has two triggers
-- one for forward, the other for backward thrust. That is a neat device to show.
Enjoy, DoN.