BVG 2590 Disguised as a Bus.

In the Eighties Berlin BVG ran a large number of vehicles in advertising liveries which did I suppose break up the monotony of the usual unrelieved cream. Sadly most were not very beautiful and with Bussing type DE 74 2590 heading out towards Spandau from The Zoo  one can look at it for a some time and still not quite know what they've selling from what few might cite as it's clever graphic design. Still for all I know it might have been for a toy shop as it least children might like it more