Didn't see every single Bond movie.
But strangely enough, I don't recall havin' seen him specifically issued with a knife.
-http://www.mi6.co.uk/sections/q-branch/index.php3
Perhaps he was issued a Q-knife
But fast forward to the here 'n now, current Brit laws certainly discourages any romantic ideas about good guys battlin' evil with a knife.
I do wonder how much negative publicity would be raise on the issue of Bond havin' applied the use of an OTF automatic...
On the other hand, I am totally blown away by a production publicity still of our "gray" man in a saville row suit armed with a rather large MP-5 fitted with a sound suppressor??! (I suppose the excuse is that HK is British owned and a favorite of the special service elements).