There is barely a corner of the five great oceans where Clyde-built is not recognised as the ultimate shipbuilding accolade. As late as the 1950s, around a seventh of the total of the world's sea going tonnage was built on the Clyde. It is not a particularly wide river, nor spectacularly long - it is certainly no Mississippi or Amazon - but its fame is legendary. From the many yards on its bankā¦