From CAST type foundry’s Instagram account: “someone took inspiration from one of the Saffran’s sample images on our website to engrave the word POSTA on a marble letter box.”
Designed as a typeface for text under 7 points body size, Saffran comes with sturdy and simplified letter shapes to prevent tiny type from looking blotted or clogged in print. As with most ‘micro’ typeface styles, the same details that were designed to remain invisible can be used to make a strong or vivid impression when used big.
The angular stencil shapes of Saffran seem almost like an invitation for use in lettering – but perhaps its shapes are more easily repeated when cut with a knife, rather than carved from marble with a hammer and chisel. I guess the unknown designer (in Japan?) had his text machine-engraved, maybe using a CNC router.