Hi Luke
OTHER RANKS (in khaki)
This is a "DHIY" POWFs, it looks gilding metal.....but it was a bronzed badge, specifically a milk chocolate bronze. Traces of the bronze coat can still be found in the badge. This type was the first issue between 1902 and 1908. Many reasons for losing its bronze coat, one would be the sand blasting effect of Egypt and beyond.
This is, "DHY", the second issue, a dark chocolate bronze thats had the ribbons dinged upwards..... probably well after its active use. (1908-15)
This is the third issue (1915-20)
All of the above POWFs are the same manufacturer of the Officers version with the DH Scroll. See here -
https://www.paoyeomanry.org.uk/DHYCapBadge.htm
*Blackened versions of the above I would attribute to the 15th (CSR) Londons.
** I AM SELLING MY DHY COLLECTION ** I have an other Ranks board and an Officers board, i do not want to split them.... so offers for the boards only please. PM me if you are interested.