Logo for the 15-member board overseeing Singapore's 1970s drive to convert from traditional and imperial systems of measurement to the metric system. The design use a 10-within-a-10 to represent the metric system of increasing by tens. It was created by Lee Chee Kang, a then 20-year-old student at the Baharuddin Vocational Institute. He won $$1,000 winner for his effort.
The brief was for an emblem to be used with publicity materials to "encourage the learning and use of metric system in Singapore". It was limited to two colours, excluding white.
All the 233 entries submitted by about 150 participants were displayed at the National Museum.