I bought this on a whim because it looked interesting to me, now I have a research project to discover its origins. There is so much about this that matches some of the Rockies jerseys I've seen, but so much that doesn't. Obviously the crest is different, but the mesh, knit stripes, Rawlings tag all match gamers of the era. It's all heavily silk screened and pretty shiny. I'm pretty convinced this isn't any sort of one-off gamer, there is no wear or pilling and the marks all seem to be stains not associated with gamers and there is no evidence this ever had a nameplate attached. The mesh is very heavy duty. The sizing is closer to a 48-50 instead of a traditional 52 and the sleeves are shorter than more recent jerseys. So far I've been able to find very little about it, but that's what makes this hobby so much fun sometimes!