Samson CL8
Should be the same as Prodipe STC 3D Ludovic Lanen, Superlux CM H8A and maybe some more.
This 3 micron k67 capsule isn't new here. Maybe someone can share info about its accuracy or frecuency response.
If I'm not mistaken is made by Getwin Dongguang.
The circuit is typical MXL2001 with low ratio transformer.
My sample have shielding issue in the switches.