Vintage super rare original 1949 dated GM CHEVROLET auto dealer promo Thermometer gauge -outstanding condition and working perfectly! -3 1/2 tall -features Chevrolet bowtie in the center with 3 jays dated 9-15-1949! The item “Vintage 1949 original GM CHEVROLET promo thermometer gauge humidity dealer 1948″ is in sale since Friday, November 03, 2017. This item…