Picked these up from Ramsfan, and the box mentions the XX and XXI. News to me. Anyone have a clue?
![](https://farm5.staticflickr.com/4874/45108618725_408d095245_c.jpg)
By the late ‘80s, the Genesis XX and XXI (later known as Genesis Jr., Genesis 4 and Genesis 5 were born, giving more options in size and design, including glass doors on the 4 and 5 models and various upgrades
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