How did 19th century Brits use this glass tubular device?

Answer Straightening cucumbers

The English take their gardening very, very seriously. And in the 19th century, cucumbers were no exception. Prone to unsightly deformities, the humble cucumber had traditionally been a veggie non grata. . . until Queen Victoria started the whole tea sandwich craze. Obviously, a crooked cuke would not do for the delicate delights. And thus, the cucumber straightener was born.

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