Overview
National Trust is a humanist sans-serif typeface designed by Paul Barnes for the National Trust of England, Wales and Northern Ireland. It is a corporate font family and not available for licensing.
National Trust is based on an inscription dated around 1748 on the Stourhead estate, part-owned by the National Trust since 1946. The inscription on which the font is based is an epigram, The Nymph of the Spring, in the grotto beside the lake where a statue of a nymph sleeps, and is in a mostly sans-serif style, one of the first such uses of the style since classical antiquity.
The unusual style of the inscription came to the attention of historians, most famously James Mosley, whose work The Nymph and the Grot on early sans-serif lettering is named after it. Mosley has concluded that he cannot be certain of the source of the style and that it does not seem to have influenced successors, but that its unusual, simplified structure may be an "exercise in rusticity" related to the spirit of the construction, intended to imitate a natural cave. As the inscription was destroyed by mistake in 1967, it had to be replicated from Mosley's photographs.
Being based on the Stourhead inscription makes National Trust a "stressed" or "modulated" sans-serif, with a clear difference between horizontal and vertical stroke widths. Other typefaces in this style include Optima (inspired by medieval inscriptions from Florence), Britannic and Radiant.
From Wikipedia (CC BY-SA 4.0).