Scanlens is a brand of trading cards first produced in the 1930s and given away with packets of sweets and chewing gum. The first sports-themed cards series were produced in limited quantities in 1963 featuring 18 players from the Victorian Football League which have since become highly sought after, with some cards commanding a price of up to $2000 each. Scanlens went on to produce further modern card sets (sport and non sport) between 1963 and 1989, many of which have since become collectors' items.
References
Scanlens Wikipedia(Text) CC BY-SA