Originally Posted by diabloNL
I have received an answer on my bottle and you are completely correct. It got an estimated date of 1930-1935 and it was also said that this is a less common bottle with the combination you also described.
Yep, that's correct! The Diageo Archive stated, " Using the photographs you provided, I have dated the bottle. It is from likely from 1930-35, though it is possibly from a few years either side. White Horse bottles varied very little in design for many years and as mentioned on the forum the closure type was typically seen on US bottles, whereas the silver foil appeared on UK bottles (US bottle usually had gold foil)I am not sure if this means the bottle was originally from another market, but from looking through our collection it does appear to be a less common bottle."
And to Walter...Thanks for your valuable expertise!