How can I buy a condom?

Date: 197-.
Credit: The Miss Margaret Robins Archives of Women’s College Hospital. Dr. Marion Powell fonds, POW-4-0260.

This letter reads:

Dear Dr. Powell

I’m a 14 year old boy student at a high school. I would like to inquire if there is any age limits, or if there is anything preventing a youth from buying a condom. Your information would be deeply appreciated.

Yours Truly X