Tom, you may be interested in this letter from The Motor World, January 24, 1918, confirming the use of Warlands on these trailers:
Sir, An article in a recent issue of The Motor World suggets that wood wheels on motor vehicles operating in war areas have failed.
We have no exclusive interest in wood wheels (although our wood-wheel plant has been described as the most extensive and best organised factory in this country) since, our special concern being the maufacture of a quick-detachable rim, equally applicable to wood, steel, or wire wheels, we are almost as much affected by the one as the other.
Obviously, therefore, although we are not a disinterested party, we are rather more disinterested than manufacturers associated exclusively with a particular brand of wheel. Our position may, in these circumstances, justify a reference in your columns to the alleged case against the wood wheel and the implied championship of a certain form of detachable wheel not made of wood.
What we desire to point out in this connection is that, although we have made thousands of wood wheels, and have equipped these and thousands of other wood wheels with Warland Dual rims; and although these range from light aeroplane trailer wheels to the heaviest twin pneumatic-tyred wheels for armoured cars and other weighty military vehicles, we have no record of a failure, either of our rim or of the wooden wheel to which it was fitted.
That, naturally, appeals to us, and, we suppose, will appeal to most other people, as fairly satisfactory evidence in favour of the efficiency of wood wheels under the strenuous conditions of war. It is certainly not evidence in support of the assertions of non-wood-wheel exponents...
THE WARLAND DUAL RIM CO. LTD