Txs Milou.
Most of us have the same fuel door lock release as you show. some might have one of the following systems as heritage of 1964.
The first one I have never seen in real life, but only in the owners manual Jan 1965. The second one shows a mechanism with which the cable moves thru the pillar into the compartment to a aluminum pull-ring under the dash.
Attachment 318568
Attachment 318569