The Five Daughters Affair (1) - S3-E28
Continuity mistake: No one seems to know which daughter is which. Margo is named daughter number 2 in Act II's title, but the dialogue calls her daughter number 1. Act III's title says Imogen is number 3, while the dialogue refers to her as number 2. (00:12:30 - 00:26:45)
Answer: He must have ridden in an Eaton's store elevator while he was in Canada at some point. For some reason, this elevator reminds him of it. The show's original concept had Solo being a Canadian, so this may be a minor nod to that fact.
raywest ★