Two houses built on Marine Lot 56. Probably built at the same time as the houses further east on reclaimed land, so 1905 was guessed.
To get an impression about the buildings here is a map together with a photo from around 1930.
These two houses can be seen on the 1930 photo next to the Sincere Department Store (blow-up from the photo above):
The two houses cannot be found on the map from 1960 (above), but they are still there on the map from 1922.
Soon later houses nos. 84 and 85 were demolished and the existing Sincere Building was extended (3 more sections) and received an additional roof floor. The 1935 Public Works Department Annual Report refers:
27. Buildings of importance completed were:—extension to Sincere Co. Building on Des Voeux Road, Central;
See the photo below (which is likely more 1935 than 1929):