Technical specs and engines are all the same type. Marjata built 1946, Mutlah 1947, apart from that I would suggest sister ships.
Marjata engine stroke 91" 5/16ths. Mutlah ES 85" 1/16th, all other dimensions are same.
sister ships for sure, once many years ago asthird mate on marjata blissfully slumbering,disturbed by raucus shout "who is sleeping in my bed"twas o.pposite number from tuther ship,straight from isais or the bristol no doubt.