Fire logos

[Willy Tschager]

Would you agree that there have been three variants of the fire logo over the years:

https://www.bricklink.com/v2/catalog/cat...01#T=C&C=0
https://www.bricklink.com/v2/catalog/cat...7#T=C&C=15
https://www.bricklink.com/v2/catalog/cat...01#T=C&C=0

Question is: mark them with a/the years in the prim title or "Type 1,2,3,"?

Some patterns are clearly wrong:

https://library.ldraw.org/parts/138

Thoughts?

w.