Hand assembled. means individual letters from decal letter sets approximently 100 letters and number in all. The stenciling on the tail is "n-scale" letters, 1/160th scale.
As for some other emblems I've hand painted a few. and used my computer to rescale some others. There is a USDA Forest Service emblem on the Fire Snake, that came from a down load and my printer on self adhesive white decal printer paper. It's not decals in the model sense, But it works ok for small subjects.