I went to a job last week and the customer had an old tool which pulled floorboard nails up with ease , it had a long handle which was like a slide hammer and at the other end a pincer with a curved short handle ,you positioned the open pincer jaws over the nail whack the sliding part of the handle down which sank the pincer into the wood slightly, then you used the long handle as a lever against the short curved handle which is pressed against the floorboard and out comes the nail .
The bloke wouldn't sell it so I've asked him to leave it to me in his will!
Has anyone ever seen one of these ?