378218 9A04 HHY 13/11/14
Thus far we've seen a 3-car 378/0, a 4-car 378/1, and a 4-car 378/2 in advertising livery so here is a standard 378/2 in 4-car formation prior to lengthening to 5-cars.
Highbury and Islington, early on 13th November 2014, and 378218 will work the 9A04 0555 to Crystal Palace. Although dual-voltage, the 378/2s also appear as here on the ELL. The '9' headcode identifies this train as ELL to facilitate correct routing at New Cross Gate and Peckham. The real afficionado will note that in preparation for 5-car sets the stop-board at Highbury had been moved, allowing this better picture of a 4-car set for a short period. That's why I bothered to get the camera out...