Re: SBB EC Coach question
I'm guessing that it was around 2009 as the coaches were repainted in the new livery. The revision included the modification of the buffers and other changes required for push-pull operation. I do not recall any photos or sightings of EC coaches in the original livery in push-pull operations. I do not recall seeing any EC coaches (other than the IC Bt) in Pendelzug consists on my visit in 2004.