Marking on Hungarian Ar-96A tail

[Jutocsa]

Hi, I recently came across a good enough Arado photo and realised what I have seen on a couple other plane's tail section was not paint chipping but some markings. Probably not squadron markings....do you guys recognise it ? Thanks for your help.

[Buckeye30]

Looks like a parachute ??
Nick

[Jutocsa]

Yep thats the best we could come up with as well, or a large oak tree with a pilot sleeping under

Usually plane factories, schools and repair shops or something along those lines had small markings on the tail, like the Re.2000s. So we are trying to find out if anyone has seen this. Maybe on Austrian or German planes.