Volunteer Training Corps 1914

Corresponding Army Ranks.
Brigadier - Regimental Commandant.
Lt. Colonel - Commandant.
Major - Sub-Commandant.
Captain & Lieutenant (Company Commander) - Company Commander.
Lieutenant or 2nd Lieutenant (Platoon Commander) - Platoon Commander.
Adjutant - Ranking as Company or Platoon Commander at the desecration of the Regimental Commander.
Unable to find any real detail regarding the sleeve buttons and braid. One description just mentions the braid to be a little lighter than the uniform.
The uniform is supposed to be Lovat Green, and was according to the HP laptop, but appears to be darker on uploading it..
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The original B/W image were in a 1915 manual.
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Volunteer Training Corps recruitment.
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From the official regulations of Jan. 1916.  They are vague to as some of the material authorized.  For example the regulations state; Norfolk Jacket with shoulder straps made in a green grey rainproof drill. The rank of the Officer should be indicated by Braid Bands on the cuff.  The NCO's discs to be of the same braid, and to be each fifteen-sixteenths of an inch in diameter.  No mention of the type of braid other than regular forces ranks are not to be use.  Shortly after the 1916 regulations were issued the VTC became part of the county regiment system.  They then became numbered Volunteer battalions of their county regiments, wearing army uniforms and rank badges. To add to the confusion, most of the VTC's records appear to have been destroyed.
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A poster
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A photograph of a Sergeant, rank badges on the lower cuff showing the braid style button, and also showing how the uniform was much lighter than the army Khaki.
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The above photograph shows the rank braid for this NCO to be much higher on the sleeve, also it's not the plain braid as stated in the regulations.  
I don't know it this was authorized in previous regulations and there's no mention of a special braid for trade or skills, bandsman for example  There are other photographs that show this type of braid, so it would appear that it was either an authorized version or just an example of wearing what they wanted and ignoring the regulations.
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I believe this is the Commander of one of the 1916 ambushed officers attending the Dublin funeral,  Again it appears that the uniform was of a lighter shade of green.

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Trumpington-VTC 1915
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Surrey Volunteer Training Corps - Possibly 1914/15
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Surrey Volunteer Training Corps - Army uniforms would suggest post 1916.