Complex sentence: Although it was by far the largest Crayola assortment yet offered, the No.52 received little publicity, and was only produced for about five years; in 1944, wartime shortages made the pigments necessary to produce many colors unavailable.
Split into simpler sentences: Although it was by far the largest Crayola assortment yet offered, the No.52 received little publicity, and was only produced for about five years. In 1944, wartime shortages made the pigments necessary to produce many colors unavailable.