To date, the only information I was able to obtain was that in 1980, Macdonald & Muir renamed Highland Queen Grand 15 as Highland Queen Grand Reserve 15 Years Old Scotch Whisky. So, it would then appear your bottle dates from before 1980. For anyone looking for a value, try
www.mctears.com or
www.bonhams.com. Please keep us posted on your findings!