Bausch and Lomb Optical Table

An old Bausch and Lomb optical table.  Cast iron metal bottom with 3 legs.  Stands approximately 26-inches high with adjustable circular handle.  Top is rectangular white marble or glass 15"X25" with 2-inch wooden border in good shape.  No visible knicks or dents, just normal wear.  Has Bausch and Lomb triangular metal tag on front of wooden border, and a Bausch and Lomb Optical metal tag attached to under side.  I have not yet weighed the table, but would estimate it to be between 70 and 80 pounds.