Children can use this box of building blocks (from accession nos. 2007-51206 to 2007-51242) to form several different interesting structures according to this instruction sheet. This toy, a first prize for topping the Primary One level in school in Chinese, belongs to a series of objects (accession nos. 2007-50972 to 51483) that document the lifestyle and consumption of a typical Chinese upper middle-class family in the mid 20th century.