I got a few bits of this from some council/highways contractors who cut it about a week ago; there's very little of it and I didn't see it in situ. so didn't get the usual clues as to what it might be..................the pictures don't quite do it justice but I'm sure someone will have a good idea what it is, and perhaps some tips on how long to leave it before working it and anything I'd need to know, I thought it might make a nice pair of scales for a knife? Any input very welcome.................atb, mac