A Union Steamship ticket from Vancouver to Bowen Island, numbered 0556. Union Steamship Co. Ltd. operated from 1889-1958; by my guess, this ticket is most likely circa 1920-1956, probably closer to 1920 than 1956. From Bowen Island Heritage:
In 1920, the Union purchased Captain John Cates’ Terminal Steamship holdings on Bowen Island and began to renovate. The hotel was enlarged and re-named Mount Strahan Lodge. Fine clay tennis courts were added. A salt water “pool” was created in Deep Bay, between the causeway and Sandy Beach, by surrounding the area with large logs. Much later, in the 1950’s, a freshwater pool was built near the hotel.
You can see maps of Union Steamships’ holdings at Map Bowen History.