I'm not sure what you mean by "XXIX4". This could be a few different things:
1. It might be a Roman numeral (XXIX, which equals 29) followed by the number 4, possibly indicating the number 294.
2. It could be some kind of code or shorthand that I don't recognize.
3. It might be a typo or error in entering something.
Could you please provide more context or clarify what you're trying to ask or express? That way, I can better understand and assist you with whatever information you're looking for.