1957 American Cyanamid - Chemistry Use Everything but the Knotholes! PSA
1957 American Cyanamid - Chemistry Use Everything but the Knotholes! PSA
Regular price
$4.00 USD
Regular price
Sale price
$4.00 USD
Unit price
/
per
This original 10 x 13" magazine ad served as a Public Service Announcement to promote the ability of American Cyanamid Chemists to make use of everything on a forested tree except the knotholes, thus allowing for better uses of America's natural resources.