Freebie M42 Zoom

OK, so this is a clunker - literally. It came in a box of assorted goodies.
Mirage 80-200mm zoom - markings suggest that it is a constant f3.5.
Has an extensive range of Macro settings (1:10 - 1:4).
It seems to be a touch loose in the middle: you can just feel it, you can just see it and you can hear it.
Rubber grip from the focus ring is missing, grip from the zoom ring is splitting, but hey, it has got a push-on front cap.
I rather doubt if it is worth the cost of second class postage - being big and heavy, but someone might feel inclined to play with it.
Collect from West Wilts, or can arrange drop-off in Swindon (regular visits to GWH). Offered here first, after that it's Freecycle, followed by the skip.