I gave in and bought this amazing box set of solar forecasting maps. Contained in two cases with 18 portfolios in each, they include reproductions of hand-drawn maps from 1957. Amazing attention to detail, superb printing quality, and overall just a beautiful (albeit heavy) object.
Each box contains 18 portfolios of drawings, plus ephemera.
An introductory text, in English and French.
On the right: showing the development of a solar flare lasting 33 minutes.
The overall print quality is incredible; both the red and black are very crisp.
Also included: a packet of translucent overlays.