I'm hoping it's not a replica but a WW2 Trench Lighter. I got it in an antique store whilst traveling in Bulgaria, I can't find any engravings on it unless I'm looking
Hand Made Trench Lighter - Hit Modern
Make a Trench Lighter : 12 Steps (with Pictures) - Instructables
Hand Made Trench Lighter - Hit Modern
WWI Trench Lighter History | Cool Material
The trench lighter: a flameless and windproof backup fire option – The Prepared