That’s nicer than the Chinese one’s I’ve seen. Glad Numrich came through for you.
The super is a great cartridge. If you get one earlier than the 70 series, it will be marked Super .38. I had one that was ‘50 vintage, and a early 60’s lightweight.
Sig actually produced a euro version of the P220 in .38 Super with the heel based mag release. It was also sold as the Browning BDA with only about 750 being made for Browning. That’s the one I’m keeping an eye open for.