Davenport pottery, Pattern id and age help please

Hello, does anyone know how old this piece might be, or the pattern name? It's a large piece 40x34cm, so assume it's some sort of serving platter. Any info much appreciated. Thank you.

Goddens is a bit vague on this one, but I suspect c1820-1860.

Thank you denbydump! It does seem like it has that sort of age to it, the crazing is very strong. Do you think it'd be called a serving platter?

A Meat plate/platter, everyone made them in the 19thC.

Thank you :)