Richard,
You’ve caught me a little off guard. Because I wasn’t expecting one of the no maker marked bayonets so soon to do a comparison as we had discussed. So I had to pull up some images from an old photo shoot years ago. (Note: My apologies up front for the quality of my images, with the less than optimal (florescent) lighting that I was using at the time.)
Posted below are a couple of side by side images with your no maker marked Waffenamted bayonet. Beside one of mine of the same approximate vintage, with mine possibly being just a ‘tad’ earlier (?) (but not much).
PS: My thanks to Denny also for posting them.
Best Regards, FP