I am in the process of trying to get my horn to work on my 68 camaro. I have read many posts related troubleshooting but my first problem is that I'm missing one of the horns. How can I tell which one is missing? I took the existing horn off and it has an "H" on it. It looks original and is stamped delcoremy w/ a part number (don't have w/me). Does this "H" mean high note horn? Also, does anyone know where I can get a good replacement or is this an ebay type item?

Yes, the H means high note. You are missing the low note. The horn page in the 68 AIM has the part numbers on it to compare.

Thanks Kevin. Would love to get an original part even if it has to be refurbished. Trying to keep it real.