found in root cellar

[Rudi]

It had a hole from one end to other in a "u" shape. Made of material like a cinder block.

 

[g-olden years]

Not sure what that object is, but hoping that you find more stuff in the root cellar! HAVE FUN! Andi

 

[clovis97]

It looks like a fire brick to me, but I'm not sure why it would have a hole in it.

 

[JOHUNT]

Empty cache? The block looks home made and the hole is offset a little.

 

[Tony in SC]

Looks like a fire brick. Fire brick were used to line the firebox in heaters and stoves. The holes could have supported a grate or a coil of pipe(laundry heater), for hot water. Tony