Here's a few photos of the O'Canada whistle that was on the 1967 Canada Confederation train. It's composed of a 3L, 2L, 1L 1, 2 with separate solenoids for all the bells. The 3L and 2L are the earlier design, similar to the Hyson 3L, 2L, and 1L single piece bells. Note the front pedestal mounts, this feature was removed in later versions.
The button:
On the locomotive:
O'Canada Whistle
O'Canada Whistle
-Reed Skyllingstad
www.PrecisionPartsNW.com
www.PrecisionPartsNW.com