Field Service Cap colour guide

[High Wood]

Does such a thing as a guide to British Army Field Service Caps exist? I have found precious little on the internet apart from a guide to Canadian FSCs.

I have found a photograph of a similar cap to mine but the owner was trying and failing to identify it.

It has a white crown with yellow piping which is not particularly visible in my photograph. I would like to rebadge it as a badge has clearly been removed and judging from the discolouration the badge was probably circular with a crown above.

The cap is also unusual in that it has a pair of tails sewn on. Any thoughts please?