Embossed AC212CW Air Filter Element Age

[jeffschevelle]

Originally Posted by SBR

When did they make the filter with the small raised letters without the silk screen? I have seen a few but of them over the years.

That would have been for a brief period during the 68 model year, after the embossing changed, but before the silk screen was added.

Large embossed font lasted until AT LEAST 8/1967.

The earliest box date I have for a silk screened filter (which has the small embossed letters and silk screen together) is 3/9/1968.

So the small font without silk screen should fall some time between those dates. (Of course, the window could be shorter than that, but should not be longer than that.)