Vintage 80s/90s Sesame Street Bert and Ernie firetruck baby onesie,size 3-6 mth

Vintage 80s/90s Sesame Street Bert and Ernie fire truck baby onesie, size 3-6 months. I am guessing this to be size 3-6 months. The sizing is by weight and it says size 14.5 lbs to 18 lbs. Zero stains! excellent condition! some paint chipping on one of the snaps on shoulder.