Turn signals not working, blowing fuse

One probe touching the fuse clip which connects to the circuit wire.
If its not obvious which side is the feed buss and which clip is the circuit,
the circuit clip is probably the one furthest away from the cable entry.
Here's one that was for sale that supposed to be from a '73 Valiant

Connector side
upload_2022-1-9_20-36-55.png

Fuse side
upload_2022-1-9_20-39-53.png