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.

Name:  tank lid release knob 1964.jpg
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