Notes on this view:

Resin-coated (RC) supports for chromogenic prints were introduced in1968 in the United States and in 1970 in Europe.  By 1971 RC chromogenic papers had completely displaced fiber-based materials.  RC papers have a paper core sandwiched between polyethylene.  This allowed for much faster processing times because the paper did not absorb processing chemicals and therefore required shorter wash times.  Sometime in the late 1970s commercial photofinishers began making prints without borders because the borders and highlights of chromogenic prints tend to discolor becoming yellow over time.