So i have a pair of red wing boots from my grandfater. There is a words "WORK EQUIPMENT. Goodyear welted construction, extended wear rubber outsole." I really curious with this model info or history, what series do the boots are? My grandfater had passed away, and i never get a chance to asked him. Even i had search on google but i cant find any info about this model. Hope anyone here can help, so i can get the history on how can my grandfather has it. Sorry for my bad english Thank you.