It seems familiar to me,, yet,, I'm not sure. It has the SR logo,, and yet,, just the word Ruger. And the registered trademark symbol. That likely puts it in the period when they overlapped the two.
And yes,, as Dan mentioned,, it may have been in the "accessories" catalogs from that period.
In my inventory sheets,, I have a Zippo listed as "stainless steel, with the red eagle" as an employee gift in 1984. I guess I need to be a bit more descriptive in my inventory,, or take pictures to go with it. Gonna make me do a little digging now.