I restored a MGTD including rebuilding the engine. I had a set of Whitworth sockets, so I thought I had it covered. Not so! Working on the car I would discover not only Whitworth was used but, English Standard and unexpectedly metric bolts and nuts were used. It drove me nuts. Years later I would discover that after WWII the English bought up German metric bolts and nuts cheaply and put them in their cars and machinery. I have been frightened of English mechanical things ever since. I'll get that book.
