ID Help needed

[East Scout]

I dont even know what it is so a google search is futile...Anyhow I found this walking on the beach today in MD..Its stone and looks to have some marking left on it in an arrow shaped fashion..Its about 4 inches across. Dispite its lumpy bottom it sits flat...Any help would be great..Sorry for the picture quality..Its a new cam and I havnt mastered it yet..

 

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[jbl04410]

Hey there East scout,that looks to me like a fish net weight.They find them around here.Yours is pretty big but that is what I'm going with.Nice find.
Jay