D
Shame that more of the label isn't legible...
I wondered if that might be the case Stephen but the design of mine doesn't look like it would pick up too many leaves.
That address must be Petersfield as it's in Hants
Can't find a concrete company with an owl logo though.
I don't think the last part is concrete. before 'crete' is a gap about the size of an 'o' and before that are (the bottom of) two vertical lines, so that does not look like a 'c'.
You can get some excellent tools @ auctions. I got a set of plumbers stock/dies complete for £10 incl commission. might never use them but.......