OK, did a little research. Yours says est. 1892 on the headstock, so that makes it an import. Harmony only started using that when they moved production outside the USA. You really need to find out EXACTLY how old it is and where it was made to determine whether it is worth fixing up. The quality of the guitars made in Asia varies greatly from one country to the next. Japan made guitars from about the mid-late 60’s made great strides catching up to the USA factories. Korea, Taiwan and China wouldn’t start to catch up until much later, and in some cases still haven’t caught up unless they are making guitars for the bigger USA companies which demand stricter quality control. I have a Harmony strat here and the model number ends in the letter “T”, which means Taiwan. It’s a 1990’s model and not bad. It’s better than a Fender Made in Mexico, IMO. If you can find a model number somewhere on it, that might help.

Still, even if it’s not worth restoring, it might make a good base for a project guitar. The body shape is not your usual Fender/Gibson clone, so it has potential to be made into something really unique.