I am not familiar as to the brand. The "L" logo should clarify that to those familiar. The rotator is a Finn-Rotor Oy FC10, 4 M ton with clevis mount, continuous rotation.
About 21" wide, 66" open.
I assume this to be a RR tie, pulp wood, brush grapple. It may do for scrap metal in the right application.
This does not appear to have been used. The tines are as new. Everything is tight. The hoses and couplers may need to be replaced to conform to your application.
The tag reads HC 20 5 FR 10 with an additional serial no.
It resembles a Heiden RR or tree service HC20 but is narrower and wrong logo.