If you come across an unusual car, you look at the front and theres a badge which tells you the makers name and on the back is another similar badge and usually the model name of the car and often info on gears/ turbo/ trim level.
Why are aircraft different. An awful lot of aircraft carry no indication of who built them and few will tell you the actual model/type. I realise that this is sometimes due to repainting etc but it is very frustrating., especially at the PFA Rally. If your aircraft has no info on it, please stick a sheet of A4 in the windscreen with basic info.
Mike W