These tall vases were designed for gladioli, a popular flower on the prairies. The bases are heavy so the tall flowers don’t tip. They were mouth blown into molds and produced in a wide range of colours. They were first produced in the 1950s. The vases at the back, with the triangular bases, were actually produced by Continental Glass, which was started in 1961 in Calgary by a craftsman who had worked at Altaglass. -Mary Coward, [Altaglass.ca](http://altaglass.ca/)