ARSENITE DE SOUDE

Sodium arsenite is the sodium salt of metaarsenic acid. It is an active substance of phytosanitary product (or phytopharmaceutical product, or pesticide), which presents a fungicidal effect, and which belongs to the chemical family of arsenicals.

CLASSIFICATION OF THE POSTERS ACCORDING TO THEIR CONSERVATION (in bold the one corresponding to this poster):

A+ Is a flawless example of a poster rarely seen in such fine condition.

A  Designates a poster in very fine condition. There may be some tears on the margins, but not noticeable. No paper loss. Colours are fresh and has no blemish.

A- There may be some slight fold marks, tear or other minor defect, but most unobtrusive. Successful restoration if restored.

B+ If some restoration it is not immediately evident.

B  Designates a poster in good condition. There may be some tears. Blemish or paper loss, but not in any crucial design area. Colours are fresh and the poster has a very good appearance.

B- Restoration may show some defects. Colours along the fold marks are faded.

C+ Restorations are visible.

C  Designates a poster in fair condition. Tears, blemish, fold marks and or paper loss are more pronounced or may slightly affect the image of the poster. Colours may be faded.

C- Requires restoration.