Very nice! They appear to be the mesh-plates, correct?
EML's have a reputation for being fragile but they sure do sound nice - at least the 45 or 300Bs I've heard. I held on to my 300B pair which was close to the top of all I've ever tried, just need to get the amps done so I can hear them again.
Really want to try their 2A3 mesh but the price is... Waiting for a pair for a song.