rather than words and asked the design team to come up with a set of custom symbols that would clearly show what the control was for and would make sense to users who may not be familiar with English. It was in 1972 that John James, Orange's Research and Development Engineer, designed what would become one of the world's most iconic amplifiers, The "Graphic Valve Amplifier," nicknamed simply "Pics Only", which was a reference to the unique front graphic panels. Early models of the Pics Only were known as "Plexis" because they had a plastic reverse printed perspex panel secured on an orange steel backplate fixed to the chassis. With later models the front panel was not plastic but silk screen printed metal plates. The Pics Only was the start of the new sound now associated with Orange and has remained the influence for the design and sound of Orange Amplifiers. With demand for Orange amplifiers still increasing it was necessary once again to seek larger premises and locate a proper factory facility. In 1973, production was moved to 17 Upland Road, Bexleyheath, in Kent. There a proper production line was possible, and this resulted in a marked increase in the number of amplifiers and cabinets being completed, an average of one amp per worker per day. This more industrial approach meant that amplifiers and cabinets could be lined up, 20–30 units at a time, and completed sequentially. This period saw distribution of Orange products in the US for the first time. It was also in 1973 that the Pics Only was redesigned. As well as some electronic modifications, the front panel was amended resulting in the Graphic 120 "Pics & Text" amplifier which was launched in 1974. In 1975, Orange launched the Custom Reverb Twin MKII which was introduced to compete directly with the Fender Twin Reverb; similarly priced, this amp featured a Hammond spring reverb, a tremolo, and a master volume. It was initially available only as a 50 Watt but the success of this model as a versatile studio amplifier led to a 100 Watt version being produced. Unusually, this model featured black with silver fleck speaker cloth rather than the iconic Basketweave grille cloth. The Orange brand was well established as a manufacturer of valve amps by the mid-1970s, but Cooper was keen to diversify the Orange product range and include solid state amplifiers for the