[thecatseye66]

I have three 68's and two 67's that I stripped the paint off completely and use as drivers. All of them are flush-edged on the outer ring of the bowtie (see photo). I have not come across any that have the raised edge like the ones in your pic.

I thought (there I go again!) that the 66' dogdish was a completely different style, with the three curved scallops like in 63-65.
I would be very curious to know the answer, too. If you figure it out let me know.
Pickemup? Are those for sale? I know 69oldie has been looking for a while, you might PM him if you want to move them...