Vintage D’Andrea Mosaic 351 guitar pics medium gauge late 1960s, 1970s. D’Andrea was always coming up with such great stuff in the late 60s and early 70s and these picks are an example of how good D’Andrea was. Back in those days they were coming up with different shades and colors of mosaic guitar picks, and this particular Run had a lot of green, Blue pink, red, white, and other colors in it. Very beautiful and each one unique.