Hello all....Oh dear, I am getting a bit of a reputation when people are expecting me to have the answers!!!
One day I'll get it wrong!!!
First of all the card...
It is actually dated 1917 (the small 17 in the bottom corner is the usual manner in which the WW1 artist dated such things...)
The title alludes to the song "Keep the Home Fires Burning" in which the last line of the refrain is "...'till the boys come home..."
Both of the photos would fit in with the Mespot campaign...In the first he has a stable belt on...This would in all probability mean he was mounted in some form or another...He is also wearing shorts KD. Although shorts were seen in the France and Flanders campaign, the were of the itchy SD material...
The side forage hat was known in Victorian times and a number of Regts retained them...And they were re authorised in a slightly different form in 1937.
The second pic has him in khaki drill trousers with elements of the 1903 (leather) Bandolier Equipment on...mainly the belt and bandolier.
The hat would have had the stiffener removed in 1916, but things take longer in the "uluh"! This may well be a "just got here, ma" pic as I would have expected to see him in a Wolseley...This not withstanding, the Gallipoli campaign saw all sorts of different modes and mixtures of dress...They set the standard for the desert "uniforms" (if one could call them that!) immortalised in WW2 by the cartoonist "Jon in his "Two Types"
Don't forget this was the campaign of Lawrence of Arabia...And look what he wore...He went native!!!
Its a shame that the cap badge is lost in the shadow...I've blown the pic up, but I cannot make it out at all...