The Photo Archive at the "Wingnut Wings" website is always good for interesting pics.
http://www.wingnutwings.com/ww/Here is one from a German Naval unit. The Jpeg description reads:
"Albatros D.Va Marine Field Jasta, Neumunster Seefrosta. Note the Halberstadt Cl.II no.24 & Albatros D.III no.12"
The crosses mean it must have been taken in 1918. Not sure, if they mean, here are both, MFJ and Seefrosta planes together.
Or were the Seefront-Staffeln (Seefrosta) parts of Marinefeldjagdstaffeln (MFJ) ?
And who's "skins" do we see here?
A question for our historians.