A flooded River

This is a mystery engraving.  It has the date of 1956 hanging from a branch of the tree.  Most likely from the time of the flood.  A fine abstract impression.  It is pencil signed but we cannot solve the spelling of it.  It reads: A Csiolery..?  This engraving was printed on a medium weigh wove type paper.  The image measaures 6 3/4X3 3/4 inches.