Looking in Ed’s book (Simson Lugers) I came across two more, both with an ‘S’ marked toggle (SN 484a and 224a)

And an interesting one (SN 1332a) marked e/43 (or e/45?)

 

I’ll look later, but I did a short study on this.

 

Here’s twenty

 

 

And the last on my iPad, I’ll check laptop later
Note that they are mostly by serial number

 

Ed, fantastic that you kept photos of the toggle markings! I’ve gone through them and added the eagle/33-stamped toggles to the ones in the OP (so far we are at six as shown below). I’m assuming #36 and #48 are also in the a-suffix serial range. Therefore, of 235 reported a-suffix Simson Lugers (from your chart), so far six (~2.5%) show the eagle/33 acceptance stamp. I’ll update this percentage as more examples come in, though I expect it to remain under 5%?