[Horch]

A good source would be 'Panzer Colors'. by Bruce Culver. I got vol.'s 1-2&3 many yrs ago. The first was only $6.95, the second $7.95 and the third has no price that can see off hand. I'd bet they would cost quit a bit more now. They show all types of tanks,apc's,bikes,etc.and unit markings. Loads of info.and pics.