This PDF is from a rather poor scan, with low resolution and lots of moire in the half-tone prints. The one at TIA is much sharper, altho still some moire. In

This PDF is from a rather poor scan, with low resolution and lots of moire in the half-tone prints. The one at TIA is much sharper, altho still some moire. Interesting that at wholeearth.info the earliest they show is the 1970 issue. But very sharp, photographed in color rather than a monochrome scan.