Positraction Tags - which? When?

[Jeff A.]

What years are appropriate for these tags.
When did they change?

[Joe L.]

Re: Positraction Tags - which? When?

What years are appropriate for these tags.
When did they change?

Jeff----


From 1966 through 1969, the tag on the left (Use Positraction...) was used exclusively. From 1973-79 the tag on the right was used exclusively. During the 1970-72 period the change was made from the early style to the later. Exactly when, I do not know.