Gaunt makers mark date period

[billy4294]

Good afternoon,
Does anyone know what sort of period this gaunt mark was used from, to?
Thanks
Billyh

[dumdum]

I've got quite a few lapel badges (probably dating from around the late 1920's to maybe the 30's) that use this "incuse" mark if that's a help.

[KLR]

I have a KLR S&G cap badge with JR GAUNT LONDON curved upwards.
This badge was authorised from 1896. <3010>
also S&G JR GAUNT LONDON - curved downwards <3069>


Foreign Service (1st) officers S&G - GAUNT LONDON curved upwards <3298> both c 1896
Foreign Service (1st) OR JR GAUNT LONDON, on plaque on neck <3070>

[billy4294]

Thank you.
Billyh