Hello,and welcome.There are better people that would know the value here,but I truly dig the label and embossing helps.If there isn't any embossing that says FEDERAL LAW PROHIBITS..... then that helps with price also.
That bottle has limited collector value unless you find someone who collects that vintage bottle and needs it. It's pretty new and of the type that few collect them. Are you another "One Post Wonder"? Time will tell!
Could be collectible to someone who collects bar-related stuff or that sort of thing, but wouldn't be worth more than fifteen dollars or so, if you're lucky, unfortunately. It might not have "FEDERAL LAW PROHIBITS..." if it's a British product, depends on where it was sold (actually, I was thinking this was a Gordon's London Dry Gin, I've never heard of Burnett, but probably British).And what's that thing embossed in the glass? Kinda looks like the Star Trek logo, though that would just be a coincidence.
Burnetts is English,and been a round for some time.I know I have a hand blown square version,with heavy embossing .Yours is a 1930s or 40s pocket flask.good label.