Non Magnetic EK2 for Opinions

[Steve Campbell]

This just arrived with a couple more. It's unmarked and has a non magnetic core. The ribbon ring on it is also smaller and a little thicker than usual, and reminds me of the one on my Shinkelform. What would this core be made of and what does everyone think of this item in general?

[Steve Campbell]

Here's the rear. Any idea of the maker here? I'm assuming it's good.

[DavidM]

Hello

Not sure about the maker, but it looks ok to me.

Regards
David

[Steve Campbell]

I'm pretty sure it's good but I post all my items to see what people think. Thanks.