The decals are sized to fit Warlord Cruel Seas  and other 3D printed 1-300 scale Vospers. There are a mix of pennant #s for Royal Navy 2nd, 4th, 10th, & 21st MTB flotillasflotilla boats.  The 2nd was a flotila that served in Hong Kong and was all but destroyed during the Japanese invasion. The pennant numbers and Fonts are historically accurate.