Final answer:
The information provided does not specify the two presents Nikolas received, but it does detail gifts given to Trina, such as an ice-water set, carving knife and fork, and a box of toys.
Step-by-step explanation:
In the provided reference, it is described that Uncle Oelbermann's gift to Trina was a source of curiosity due to his wealth and her status as his protege. However, the actual presents that Nikolas receives are not detailed in this extract. To answer the student's question specifically about what two presents Nikolas received, the information given in the question stem is insufficient. The excerpt mentions a wide array of presents given to Trina from various characters, including an ice-water set, and a carving knife and fork with elk-horn handles from her parents, a chatelaine watch of German silver from Marcus Schouler, a paperweight from Selina, and a box of all sorts of toys from Uncle Oelbermann.