Greeks in the 1870s Sweden Emigration Registers
Ancestry.com has a new database titled "SWEDEN, EMIGRATION REGISTERS, 1869-1948
I did a search on Country of Birth. It is transcribed in Swedish, so I searched on "Grekland" which is Greece in Swedish.
There were 3 people with obvious Greek names.
G. C. Chemelis - birth abt 1840 - ship departure date 24 May 1872
Emmanuel Malias - birth abt 1858 - ship departure date 7 Sept 1877
Georges Otza - birth abt 1859 - ship departure date 7 Sept 1877
You will be able to view the actual Emigration Register and a typed transcription of the record.