Pencil anode on HW tank on Jeanneau 43ds

[SaltyMetals]

My Jeanneau is a 2004 43ds. I cannot find any info as to where the anode is on my HW tank, nor can I identify the maker of the tank since the maker's label is mostly up against a panel. All I can see is "...... WARM". I suspect it might be the black fitting under the grey pressure relief valve on RHS of attached pic. Or could it be that the HW tank is copper so no anode is needed? Can anyone pls help me on this?

[nigel1]

Looks like a C-Warm unit. Copper tank, as far as I am aware, there is no anode.