The LEGO 1981 Catalog #226 is a vintage booklet featuring ideas for construction and play with DUPLO bricks. Produced by LEGO in Germany, this catalogue provides English-language inspiration for building with LEGO sets from that year. With a focus on the DUPLO theme, this catalog offers a glimpse into the creativity and imagination of LEGO enthusiasts from 1981, making it a valuable resource for collectors and fans of classic LEGO sets.