Additional info from member:
I have got a unopened black label JW bottle and box, I have being trying to id the age all day, the bottle reads extra special old scotch whisky (Kilmarnock) appointment to her majesty the queen.
And the its measured in imperial “NET 1 PINT 6 FLUID OUNCES” ( I live in aust BTW ) so I was thinking it would have to be pre 30s before we went to metric? And on the back the diamond sticker reads “distilled and bottled in Scotland under British government supervision”
Now for the glasswork writing and numbers (BACK) JOHNNIE WALKER THIS BOTTLE ALWAYS REMAINS THE PROPERTY OF JOHNNIE WALKER & SONS LTD.
(BOTTOM) Now this is where becomes bit hard being handmade and really hard to read.
M 5 OR 58154 H S