Also no!350 then?

Also no!350 then?

Class 444?
One last one - 450?
Or a 313?
Interesting thinking, but it's not actually the coupler!350,444 and 450s have Dellner couplers. The photo does not show a Dellner coupler. This also rules out 171s, 22x, 377s and 390s.
Class 442?
314???
Ah! Class 318?

A 320?
Yes, sorryOh another coupler one.
It is a tightlock; not a 455 thoughEr. Looks like a tightlock one so I’m going to go with 455
I'll continue 'bidding' with a 456
Not either of theseClass 321?
Not a 319 either319??
Not a 317Erm... Class 317?
NopeNetworker then... 465/466?
Not one of them eitherClass 365?
Not a 313; I'll give you a hint, you won't see one of these in London313? What else could it be!