I'm pretty sure you don't have an American Deluxe. The Americans only came in red, black, and blue if I recall correctly. They also had a special 'American" seat tube decal. I'm almost 100% positive the green color means it isn't an American Deluxe.
Here are the models and years that also came with a slimline tank:
1962:
- American
- Fleet
1963:
- Jaguar Mark 5
- American
- Fleet
1964 Onward:
- Panthers
- Jaguars
- American
- Fleet
The color eliminates the American. Fleets didn't have chrome chain guards. Jaguars had a different style chain guard. That makes me think it was probably a Panther. And sure enough the Panther came in a variety of funky 60's colors. Here is one in a gold / yellow color: