Unless you mean it's full of metal and grit from
regrinding brake discs
and drums, which seems to be common in the US (and with brake parts so
cheap and so important, something I've never seen the point of - but
let's not stray so far offtopic).
Yes, it appears to me from metal disks. It was stored very near the
disk grinder tool.
I should just scrap is out for non-mechanical parts, and junk the
rest, actually. I am not about to put any tape of mine in the thing.
--
Will