Here’s a somewhat mysterious ad from the September 27 1948 edition of the Toronto Daily Star:
I was curious, so I looked in the next day’s paper. It had this:
By now, I was more curious (which is the point of the ads, of course). The September 29 1948 paper resolved the mystery, as it was an ad for Morse Credit Jewellers, opening at that location.
Tracing Morse Credit Jewellers in the Toronto city directories: they had four outlets in 1956, including 282 Yonge. By 1960, they had five outlets, but the 282 Yonge location was gone. They had four outlets in 1965 and five outlets again in 1967, but they are not listed in the 1969 directory.