LDN Penrose
London Type Foundry · Paul Harpin

A grid-based modular display family of eight alphanumeric fonts sharing identical metrics but each applying distinct fill and corner treatments across the grid, designed by Paul Harpin in homage to the Penrose lineage.
About
Each of the eight fonts in the family explores a different visual expression of the same underlying grid structure, with variants ranging from dots and squares to stencil cuts and corner treatments. A ninth bonus font supplies additional background grid patterns. The family takes its name from the Penrose family of artists, mathematicians and physicists, as well as the influential Penrose Annuals published by Lund Humphries.
Classification
A strictly grid-based modular display family where each variant applies a unique treatment of fills, corners and dot patterns to a shared skeletal grid, placing it firmly in the geometric/modular display category.