@Lordyaswas,
It might be worth researching "Eric Hesketh Hubbard" who gained most of his fame here in the UK for designing iconic Railway posters.
Your painting sort of looks like his style, but I would advise sending your photo to an Art Society or similar, who specialise in Hubbard works.
If it's genuine and a painting rather than a print, a Hubbard could be worth a decent amount of money.
Then again, I could be totally wrong, but as soon as I saw EHH, I immediately thought Hubbard.
Good luck.