Hi,
Looks to me like there is fancy pin stripping on the panel close to the lion head? Also, I see an orange color on the inside of the top door, and on the outside of the bottom? Is that wood or steel?
Anyway, I have removed a few different types of paint, by guessing at the texture and the run on the front door, it looks like alkyd enamel, I think using heat for this type works? (plastic razor blade, from the automotive paint shop) or try in a small area with “spray gasket remover” but wipe it quickly with a damp cloth or sponge?
Try to follow all the safety precautions as the old safes have anyone knows what on them!
(discuss it with the person at an automotive paint store!)
Take care, that’s a really cool safe!