Vintage Individually boxed Xmas Cards

I have a dozen boxed Christmas greeting cards that I have had stored for over 20 years. They appear to be custom or handmade by the "Morgan Greeting Card Corp." out of Miami.

The cards appear to be rice paper (or perhaps vellum?) and each card has a different image on it's front. All of the images use authentic and varied feathers in the bird plumage. I have attached sample images.

I'd like to know how old they are, their value (if any) ,and if anyone has seen items like these before or know what happened to the company.

Thanks all. Any assistance would be greatly appreciated.