Unknown flare gun holster

[TP Alexander]

This one has been decorated by a soldier with a little 'trench art', for lack of a better term.
Any idea of the country of origin??
USA?
And any thoughts on value?
A guy wants to sell it to me but he doesn't know what to ask for it.

Thanx,
Tim

[TP Alexander]

2

[bergler]

somehow the whole Thing Looks home-made to me. Definately no Holster that I have seen before. But from the Loops for the flares (?) it should be for american or british flares, not th eeuropean 26,5 mm flares.....