This is Interwoven 4 in 1 Dragonscale (I call it Interwoven European 4 in 1 Dragonscale to identify the base pattern/weave); the rings are of uniform size & AR - 18g wire x 8mm O.D.
Author's Note
I wanted to contribute my tutorials to Chainmaillers.com to help ensure that the entire chainmaille community has access to them. The tutorials are presented here with the same images and text from my old site CGMaille. I hope they continue to help inspire you to learn and create...