Offset lithography is a photographic printing technique that uses inks carried by rubber rollers to transfer images from metal plates to paper. As a method of mass-production printing, lithography’s main advantage is high and consistent image quality at an affordable price.

The McNamara Collection has offered lithographs since 1982, and a limited edition lithographic print production of a William McNamara original watercolor typically ranges from 500 to 1000 prints. Each limited edition lithographic print is signed by the artist and numbered cialis 20 mg.