Hurt P

I bought an Estrada 12 string Hummingbird Model F614 in the early 1970's. It is well built and the sound is great. About ten years ago I read a story on line about the Estrada. It was written by a man that had worked for Gibson. He said that if the guitar has a green rectangular tag it was made with Gibson body and neck parts that were sold to a company named MICA. He later retracted the story so I don't know if it was true. He also said that the ones that have a yellow oval sticker are not made with Gibson parts. My guitar is close to an exact replica of the the Gibson Hummingbird except that it has the Name Estrada where the Gibson logo is on their guitar.