The cream of the crop of the Teslas have cross sword markings.

TBH the yellow print ECC803S 32 is as good as the Telefunken ECC803S. I know as I owned both. The Teles cost a fortune, but I made money on them. They are no better IMHO, they sound almost exactly the same. Extremely close.

I have a quad of cross sword yellow print E88CC 32s and they are fantastic. Paid around £120 for them but they are getting scarce, so I'd expect more for those now.