Replica Bust of Eleonora d' Aragon

This is a replica bust of Eleonora d' Aragon which was orginally done by Francesco Laurana.  I believe the material is porcelain versus plaster because it is shiny and appear to have been put into a kiln.  The vintage bust belonged to my late brother who was an antique collector. There is a visible hallmark on the bottom of bust with a symbol hallmark with an "XX" and a number "2026". Please see picture of hallmark.  The bust height is 7 1/2" inches tall.  The base is 7 1/2" inches long and the width is 3' inches wide.  The bust weighs 35.1 ounces. I am trying to find out who and when they made this bust  hopefully by identifying the hallmark stamp on bottom.