HISTORY OF PHOTOGRAPHY "Do you want to face the world of color with a new sensitivity?"; Advertising of the new color slide films spread in the specialized press. 3M Italia SpA Photography Division markets its 100ASA / 21DIN product with two formulas: the packaging with the red stripe includes the costs of the development and framing process in the 3M laboratories; the blue stripe does not include them and allows the customer the free choice of development laboratory. Italy; 1975