Our (very) long time member Hugo Bischof was friendly enough to share what paying your Swiss Club membership fee looked like a while back.
The old CIBC logo was four years young in 1970:
And the back of this cheque from 1971 sports the old club logo:
Corrected for inflation, $10 in 1970 correspond to more than $77 in 2023. Looks like those $30 memberships are quite a good deal!