Anyone know how old these Winsor & Newton watercolors are? they

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My Winsor & Newton Pen Painting Box from ~1935, does anyone know any history about this set, or art antiques? : r/Antiques

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Anyone know how old these Winsor & Newton watercolors are? they are super small tubes found them at a flea market for $5 any information or resources would be helpful : r/Watercolor

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