Antique/vintage school chart for single-celled organisms Norstedt & Soner Poster For Sale

This "Einzeller" (Single-Celled Organisms) chart by P.A. Norstedt & Söner is a highly collectible, authentic antique/vintage educational pull-down school wall chart featuring detailed early-century scientific illustrations of microorganisms, bacteria, and microscopic life.Key Details & Specifications - Publisher: Printed by P.A. Norstedt & Söner (Stockholm, Sweden), the oldest and one of the most prominent publishing houses in Sweden.Dimensions: approximately 70 cm × 100 cm (roughly 27" × 39").Condition: Yellowing and some staining, No significant damage otherwise, see photos or ask for more photos or details before buying. Had all hardware for rolling up.Today, these pull-down charts are highly sought after by collectors of natural history antiques and vintage home decor due to their distinct patina, bold mid-century aesthetics, and scientific accuracy.