Hi Sheryl....I moved to Sunnyvale, CA in 1961. That's just down the road from Fremont. When the plant opened, they had a dedication ceremony and open house. You got a complete guided tour of the assembly line, start to finish. You also got a dedication key blank that you could take to your favorite locksmith and have cut to fit your GM vehicle. I still have my uncut blank. Almost used it on various GM vehicles over the years. I believe the original purpose would have been a give away commemorating the opening of the plant. But some could have ended up on cars coming off the line. Also local dealers may have received some. Hope that helps
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