Here is an image I've posted in the past...

Take a look at two things, in particular...the thick line around the lion (I've highlighted the area behind the lion's head, which is quite obvious, to my eyes), and the thick inside frame line running all the way down the left side of the design. The horizontal lines end in a thick vertical line.
(The same features appear on the right side of the stamp.)
There was another topic in the recent past that had good images,
but it didn't pop up in my first couple attempts at a search. If you try a few different search words, you might find it. here:
https://goscf.com/t/57862