Vancouver Public Library Panel truck

I wish I knew the make & year. Looks like 1938-40 to me; but the library branch (Collingwood) was opened in 1951, a strong modernist design that has seen some unfortunate alterations over the years. Generally the standards of Canadian architecture have been low, historically, with exceptions; disastrous buildings or disastrous modifications of good buildings are too often the rule, from sea to shining sea. The truck looks almost British, doesn't it?