

Below is a four-way comparison between Giants caps. From left to right, we have a KM Pro cap circa late 1960s/early 1970s, a Roman Pro cap circa 1977 to 1982, the "oddball cap" made by New Era, then the regular 1977 to 1982 version made by New Era.


When it comes to the orange-visor caps, the true on-field version is the one on the far right. Here is Vida Blue to demonstrate.

I figure this cap could be one of two things. Either it's a prototype, or it was just an uncommon version that was available at one time or another. One thing I am certain of is that this must be the prototype for the inaccurate "Cooperstown Collection" versions that are out there. Any thoughts?



