This slab contains scientific interesting plant fossils of Taeniocrada longisporangiata. It was found in the lower devonian layers
"Klerf Schichten" of the Olkenbacher Mulde / Eifel, Germany
The well preserved spore containers (sporangia) are interesting.
The stone is unbroken and quite big, it measures about 34 x 26 x 3 cm.
No manipulations at all!