Dock found on Shoreline

About ten days ago a piece of flotsam washed up on the shoreline in Windham and we would like to get it back to whomever may own it. It looks like a piece of a dock.  It's about 4 x4 feet and made out of 2x4s. 

 If anybody recognizes it, please call William Schroeder at 603-898-6086.