Por Bacon

left: S(igns) y trazos N – gris (strokes black and grey)

bottom: 2. or 3 red strokes

right: S(ign) en negro puro (in pure black)

center, from top to bottom, left to right :

flat Blue ul(tra) / grey N(black)/Bl(ue) Ul(tra)
Bl (white?) /greys and ochres  / Bl(ue) Ul(tra)

carnet