Miniature Engineering Museum: Valentine 4 Stroke Model Airplane Engines by Ron Valentine, circa 1980
Miniature Engineering Museum: 5 Cylinder Diesel Radial Engine Designed and Built by Ronald Valentine, 2007
Miniature Engineering Museum: Valentine Nano Bee .00037 (cu in) World's Smallest Diesel Engine by Chris Hans Valentine and Ronald Valentine
Miniature Engineering Museum: 5 Cylinder Glow Radial Engine Designed and Built by Ronald Valentine, 2011
Miniature Engineering Museum: Valentine 2.7cc 3-Cylinder Glow Ignition Radial Engine by Ron Valentine, 1986
Miniature Engineering Museum: Valentine 2.5cc, Supercharged 5-Cylinder Glow Ignition Radial Engine by Ron Valentine, 1986
Miniature Engineering Museum: Valentine Diesel Engines by Chris Hans Valentine and Ronald Valentine
Miniature Engineering Museum: Ronald Valentine Micro 4-Stroke Engines, circa 1980
Miniature Engineering Museum: Ronald Valentine Micro Radial Engine, circa 1980
Miniature Engineering Museum: Ronald Valentine 4-Stroke Single-Cylinder Engines, circa 1980
Miniature Engineering Museum: Valentine's Nano Bee 5 Cylinder Diesel Radial by Ron Valentine, FL, 2017