[tynesideirish]

I have family connections with this unit, hence my username. I've been lucky enough to have met a large number of these veterens when a boy and here is the real deal, no doubts, if's or but's.

Officially Shoulder titles combination.
Though harp only, seen as collars unofficially (see the T.I book by John Sheen.)
NEVER worn on cap. Normal Northumberland Fusiliers badges where worn.
The other battalions numerals 24, 25, 26, 27, 30 were the only variation / difference throughout the brigade.

Anything else lug configeration, or slider, or makerless should be regarded as suspect at best outright fake at worst.
Mike