Engraved on trophy at front seen here.

Senior Championship
Presented by
The
Amateur Hockey Association
of
Canada

This Trophy was presented between 1887 and 1898.
Montreal Crystals were the 1st team to win the trophy.
Montreal Hockey Club (Montreal AAA) won the trophy 6 times.
Ottawa Hockey Club won the trophy once.
Montreal Victorias won the trophy 4 times including the last presentation.

This image shows the trophy missing 2 Hockey Figures on each side, and 1 Hockey Figure missing from the top of the trophy