Mystery Sun Helmet Badge-Colour Flash

[Lyndale]

Hello, I've just joined the forum and request help please to identify the WW1 or WW2 regiment that uses the vertical stripe badge/flash on the Wolseley helmet in the attached photograph?
My interpretation of this soldier's uniform is that he is probably a member of the corps of drums & bugles of a line infantry regiment, either interwar or WW2, going by his dress-cords, which are probably coloured green. He has a single LS&GC chevron depicting between 2 and 5 years service. His Blanco belt and lanyard suggests post-WW1. The swagger stick was probably a prop provided by the photographer. Nothing identifies his regiment other than the helmet flash. Any help would be most welcome.
Regards Lyndale (Melbourne Australia).

[Young Law]

The dimensions could be that of an RCAF/RAF flash, but I don't believe they wore good service chevrons.

[leigh kitchen]

Can you provide hi-res crops of the buttons please?
They well just GS pattern but you never know.

[Toby Purcell]

The idea of swagger sticks being photographer’s props is way off beam. Swagger sticks were laid down in battalion standing orders as part of unit dress for ‘walking-out’. He’s a drummer as he’s wearing drummers cords and doesn’t have the Rifle regiment black buttons to make him a Bugler (although it confuses the unfamiliar that a Drummer also used a bugle for unit routine calls to administer daily routine). I agree that the cords are the LI green of all non-Royal line infantry regiments.

[Lyndale]

Dear Leigh and Young-Law, apologies for late response, your messages did not trigger an alarm on my email.
Dear Tony, thanks for your input, which did alert me today on my email. Also your very useful information that he is a drummer, rather than an official bugler. I haven't included a better resolution jpg as requested, because the regiment of this soldier was solved recently by the author of a specialised book on British Army sun helmets. The conclusion was that the helmet flash was black-thin yellow-black, which conforms to the Bedfordshire & Hertfordshire Regiment. The time period has been put at 1925 through to 1938 based on where (in tropical climates) the two battalions were based post WW1. Thank you all for taking the trouble to assist me with this post. Regards Lyndale.

[cbuehler]

This most definitely an interwar photo and may well be the Beds and Herts, but I am curious as to why no collar dogs are worn, which was the norm for this period.

CB

[Toby Purcell]

Originally Posted by cbuehler

This most definitely an interwar photo and may well be the Beds and Herts, but I am curious as to why no collar dogs are worn, which was the norm for this period.

CB

Collar dogs were invariably worn on the temperate climate uniform, drab wool service dress (SD) at that time (post-1924), but not so regularly on khaki drill (KD), the stout cotton uniform worn in warm weather stations. Later on there was more consistency and by the mid-1930s collar badges could be seen on both.

[Toby Purcell]

Originally Posted by cbuehler

This most definitely an interwar photo and may well be the Beds and Herts, but I am curious as to why no collar dogs are worn, which was the norm for this period.

CB

Officers, stepped collar KD, of the style worn with soft collar shirt and tie did usually have collar badges.