Smucker's Butterscotch Flavor Ice Cream Topping Jar

Smucker's Butterscotch Flavor Ice Cream Topping Jar
I picked up this paper labeled ice cream topping jar at a local thrift shop for 30 cents.
I'm trying to figure out the approximate age of this fine looking jar.
I don't collect jars but just curious about this one. (I do like butterscotch flavoring on my ice cream).
I'm thinking early 1970s.
Clues include:
- Pre UPC
-Ingredients listed but no nutrition information.
- 39 cents for the "Economy Size" 12 oz.

I appreciate any help on this :)