Vintage fire brick paver from the turn of the century. L F B WKS LOUISVILLE which was manufactured by LOUISVILLE FIRE BRICK WORKS, Louisville, KY. Roughly measures 8 3/4 X 4 1/4 X 2 1/2 x 2. Wedge shaped.
Be sure to take a look at my other paver listings, I have many more.
Combined shipping is offered for additional purchases.
Any questions are welcome.