The LEGO Universal Building Set theme, released between 1966 and 1977, includes 4 minifigs from 40 sets.
4 minifigs
Minifig number old025
Legoland figure with a red torso, red legs, and a red hat
Value $12.09
Growth  +504.5%
Minifig number old011
Legoland figure with a black torso, black legs, and black hat
Value $12.01
Growth  +500.5%
Minifig number old007
Legoland figure with blue torso, legs, and hat
Value $10.50
Growth  +425.0%
Minifig number old006
Legoland figure wearing a white hat, white torso, and white legs
Value $11.30
Growth  +465.0%