A technical patent drawing from 1961 illustrates the exploded assembly of an interlocking brick toy system, rendered in detailed mechanical line work against a weathered cream background. Multiple cross-sectional views show the construction layers and internal mechanisms with the precision of an engineering schematic, creating a sense of nostalgic innovation and industrial clarity. At home in a playroom, creative studio, or collector's space celebrating design history. Gallery-wrapped on a wooden stretcher and made to order, ready to hang straight from the box.