Bottle of Black & White Scotch - How Old?

I was recently given an old bottle of Black & White blended Scotch, and I'm curious if anyone can date the bottle for me.

Here are some details:

• It's got the diamond-shaped label on the back with the two terriers
• The front label lists "Dodwell & Company Limited, sole distributors for Hongkong, China, Japan"
• There are only three labels: front, back and cap (i've seen some bottles that had two smaller strips either above the front label or below it).
• Numbers on the bottom of the bottle read, SA 95 N 28 UGB

I'd be happy to post photos if necessary. Thanks in advance!