Identify so14 orientationn

Hi all,
Here I sit with a newly acquired 14-pin so14 IC, and I cannot be sure how to orient it!. No notch, no mark in the corner, those two forms known for ages, But, it has a line across one end, see picture (a drawing, my camera couldn't do it). I have never, ever seen this way of marking before, neither on other IC's, nor on datasheets. An educated guess is, of course, that the line corresponds to a notch, but I cannot be sure.
So, can someone: 1. confirm/refute my guess, 2. tell me why a venerable cmpany like TI introduces a, for me at least, whole new way of orientation marking.

Grtz and thanks all.

Yes, pin 1 is the lower left corner. It's pretty common to mark chips like this.

The chamfered edge along the side that contains pin 1 is quite common as well. The picture shows the chamfer.

Here is, at last, a photo
20210519_112200

Like Visitor mentioned, The white line for pin 1 is a very common marking.