How on earth did these find their way into an Eastbourne car boot sale?

Graham

Not me! 

There are a couple of 'tecchy' type people in the town who i'd assume would be selling these - but the sellers name on this auction i've never seen before..

Lee

There's of course a good chance that all of these are ruined / discarded as non functional to begin with, as usually is the case with anything advertised as "not tested"... but I'd buy that for a dollar!

Surely it is most likely that these have been removed because they don't work. It may well be that they just need a new capacitor in the servo board but they have probably not been treated with much care!