Original, Vintage 1972 US issued comical ecology bumper sticker lot of Four assorted , all unused.
a)  Noise  -  Shhhhhhh

b)  Noise  -  Annoys

c)  Protect our environment

d)   smallest decal pictured at bottom, with clear background , titled "Clean Air" 


THREE stickers Measures: 13  1/4"  to   14  3/4" inches in length.
these are vinyl vintage stickers.   the adhesive backing is attached , but being 45 years old , the adhesive may have lost some of its original strength.
o/w Unused, nice condition for age.
these were some type of promotional stickers issued by the U.S. Environmental Protection Agency ( EPA ) about 1972 , as that is the date on the blue stickers.