M/V Marcella II, presumably in Europe earlier in her career, though this looks like a modern image. It is possible that this is not the same Marcella II trading in Bahamas.
Photo source: copyright by Vladimir Knyaz, http://www.grosstonnage.com/index.php?session=16442S2074293468IBYDQI8575&syslng=ing&sysmen=-1&sysind=-1&syssub=-1&sysfnt=0&code=VESSEL&vck=B@D55@5CW7i@0Ezd@26@9Ec@12@BE@0F
MAILBOAT NAME: M/V Marcella II
PAST NAMES: not known
DIMENSIONS: said to be 170′ long, 298 gross tons, 511 DWT or cargo tons, IMO # 5236654,
YEAR BUILT: 1956
BUILDER: Busumer Schiffswerft, Busum, Germany (then West Germany)
EARLY CAREER: presumably traded coastwise from Germany 1956-1980s
BAHAMAS CAREER: presumably served Freeport Grand Bahama from Nassau like her namesake the M/V Marcella I, plied Bahamas trades from about 1986/1987 to 1987/1988 when she was damaged and written off.
CAPTAINS: Capt. Eddins Taylor
2 – On the Government list of mailboats c.2000 “M/V Marcella II” is specifically listed as serving the Bahamas.