The poster of The Exchange Room is part of a poster series for the building’s Bulletin Board: forming the announcements introducing each section of The Palace of Typographic Masonry. This section consists of a wickerwork of connecting cables, stretching far and wide beyond cultural, temporal, and geographical conditions. Like other announcements, the poster is silkscreen printed in a set of three colours – green, cyan and purple – which through overlap and transparency produces a vast array of mixed colours.