In contrast to the previous two colourful uniforms this is the all black uniformed 5th Hussars, with their notorious skull and crossbones badge on the front of the mirliton, a similar design to which survived as late as World War 1 on the furcap of German hussars. The mirliton is shown with its wing "unfurled".
Squadrons of this regiment fought on almost all fronts of the European theatre in the Seven Years War.
Again, the actual template is here: http://www.woodward.toucansurf.com/SYW/SYWPrussian5thHussarRegtBlackorDeath-DM1.png because of the problem with the blog increasing the size and colour depth of images over a certain size.
Monday 19th November: Image slightly modified and improved.