...In the early 1960s the Swiss Architect Fritz Haller developed the so-called MINI MIDI MAXI system, essentially a modular construction system based around standardised steel components and which allows for the construction of three scales of building: MINI for houses and similar small, two storey, objects; MIDI for schools/administrative buildings etc; and MAXI for larger single storey work such as factories, and a system which was marketed by Münsingen based metal fabricators USM as the "USM Stahlbausystem Haller"... And, therefore, and logically, was used by Fritz Haller to construct new factory and administrative facilities for USM...