There are three Highlanders in Wolseley helmets recently produced by Dave Ryan's "Forgotten Front Miniatures" range available on the Miniature Figurines website: http://www.miniaturefigurines.co.uk/Catalogue.aspx?ScaleID=15&CategoryID=51&SubCategoryID=253
Here's one I painted earlier, as they say on all the best telly programmes.
A welcome addition to the cannon of miniatures available for the 1914-1930 period. Great to paint, too. Nice work, Dave.