need help with id and value on this old monster of a marble

[geo4472]

found this while digging bottles at an old dump where i have been finding bottles aged from as far back as the mid 1800's anyone know type and value thanks forlooking

 

[cheese]

It's a bennington marble. Blue glazed. From the late 1800s to early 1900s, worth $10 or so. Cool find!

 

[bottles10]

I agree with Cheese. But it is unusable in that size