Who were engravers with browning in the 70's?

In the 1970s, engravers with browning often referred to artists who specialized in creating intricate engravings with a technique that emphasized darkened (browned) areas for contrast. Notable figures in this field included engravers like John F. Clymer and John P. Smith, who produced works that showcased detailed landscapes and wildlife. This period also saw a resurgence in traditional engraving methods, with many artists experimenting with different browning techniques to enhance their prints.