Halifax help needed

[Graham Boak]

I'm not sure the serial would have helped that much, as the Z mods were applied in service. I don't know if the dorsal turret started disappearing before the nose fairing, let alone the lesser stuff such as landing lights, but the date is fairly indicative that she was "as delivered", especially with the back-up of the photo. Maybe there are other photos of 405 in this period, but I didn't go dredging for them.