10th February 2016 F = Fluted box The first Fluted boxes, a pillar box design loosely based on a Doric column and cast by Smith & Hawkes of the Eagle Foundry, Birmingham, appeared in 1856 and had a vertical aperture. In 1857 the design was changed to provide a horizontal aperture. Fifteen Fluted boxes, including both types, are known to have survived in the UK. The Letter Box Study Group 2016-02-10T16:06:01+00:00 The first Fluted boxes, a pillar box design loosely based on a Doric column and cast by Smith & Hawkes of the Eagle Foundry, Birmingham, appeared in 1856 and had a vertical aperture. In 1857 the design was changed to provide a horizontal aperture. Fifteen Fluted boxes, including both types, are known to have survived in the UK. https://lbsg.org/testimonials/f-fluted-box/