in 1917, a wealthy Malaysian businessman Mr. Tong Sen, donated sufficient money for the purchase a Mark IV Tank from William Foster and Co., of Lincolnshire, as his personal contribution to the WW1 British war effort. (resulted in his being awarded the OBE in 1922)
One of Mr. Tong Sen's strict stipulations, was that his donated Tank would be painted with a ' Seeing Eye', which in Chinese mythology would ' ward off evil '.
Mr. Tong Sen's Mark IV Tank also had a ' Dragon' painted in the Tank's front panel
Tank F56 is known to have used two names ' Fan Tan ' and ' Firefly ', with Fan Tan probably being it's original name.