Dive into the fascinating journey of a vintage Stanley thermos discovery that sparked a community-wide investigation on Avonetics. From decoding cryptic "B 77" markings to analyzing box designs and copyright dates, enthusiasts pieced together clues pointing to a second-quarter 1977 production. Could this be the ultimate Buy It For Life relic? Join the discussion and uncover the secrets behind this timeless treasure. For advertising opportunities, visit Avonetics.com.