Which preposition to use with spyglass

for Occurrences 1%

This important matter having been settled, Uncle Ith pointed out to Pet all the interesting objects to be seen from the tower, and adjusted the spyglass for her, and gave her near views of Governor's Island, the Palisades, and other remote objects.

under Occurrences 1%

As the Macedonian bore down on the Americanher men at their quartersSukey and Tawney, who happened to be stationed at the quarter-deck battery, respectfully accosted the captain, as he passed them in his rapid promenade, his spyglass under his arm.

Which preposition to use with  spyglass