Old Pulteney 21 bottlings

pyro273

After finding this incredible whisky at a Whiskys of the World event in 2017 and hearing about it's discontinuation, I figured I'd better try to find a few bottles for the collection before they all disappeared.  The first bottle was what I expected, green container and the bottle graphics as I remember them from the WOW event.  The second bottle, however, is entirely different; it came in a gold container and the graphics are totally different than the first in that the Old Pulteney name is in different script and in a different place among other things.  I've found images of both on the Internet but no other info.

Anybody know what this means?  Is the gold container an older bottling?

Pyro