Cyanometer
A cyanometer is an instrument for measuring 'blueness', specifically the color intensity of blue sky. It consists of triangles of paper in graduated shades of blue and arranged in a color circle that can be held up and compared to the color of the sky.
More Details
4.5” x 4.75”
Cyanometer with handwritten numbers
vellum envelope
A cyanometer is an instrument for measuring 'blueness', specifically the color intensity of blue sky. It consists of triangles of paper in graduated shades of blue and arranged in a color circle that can be held up and compared to the color of the sky.
More Details
4.5” x 4.75”
Cyanometer with handwritten numbers
vellum envelope
A cyanometer is an instrument for measuring 'blueness', specifically the color intensity of blue sky. It consists of triangles of paper in graduated shades of blue and arranged in a color circle that can be held up and compared to the color of the sky.
More Details
4.5” x 4.75”
Cyanometer with handwritten numbers
vellum envelope