If you want the full version and license for commercial use,
you can purchase here :

https://fontkong.com/product/eternal-amsterdam-font-duo/

File Font Version : 

1. Eternal Amsterdam.otf
2. Eternal Amsterdam.ttf
3. Eternal Amsterdam.woff
4. Eternal Amsterdam Duo.otf
5. Eternal Amsterdam Duo.ttf
6. Eternal Amsterdam Duo.woff
7. Eternal Amsterdam Duo Italic.otf
8. Eternal Amsterdam Duo Italic.ttf
9. Eternal Amsterdam Duo Italic.woff
10. Eternal Amsterdam Italic.otf
11. Eternal Amsterdam Italic.ttf
12. Eternal Amsterdam Italic.woff