This is the interesting find, the slab with 2 different Bryozoa species 


-Chasmatopora furcata (Eichwald, 1854)
and
-Pachydictya kuckersensis Bekker, 1919 (the smaller)
 

 The specimen was found in  Sandbian (Upper Ordovician), Kukruse stage deposits, near Narva, Estonia. No reconstruction, shipping worldwide is $25.

This type of fossils available for the bulk sales.