Recorder (Mar. 1931); 37, no. 2

Glow in The Dark Neutral Invisible Strontium Aluminate Glow in The Dark Fluorescent Pigment Powder (Yellow glows YELLOW/ORANGE, 8oz)

Glow in The Dark Neutral Invisible Strontium Aluminate Glow in The Dark Fluorescent Pigment Powder (White glows BLUE, 2oz)

Glow in The Dark Neutral Invisible Strontium Aluminate Glow in The Dark Fluorescent Pigment Powder (Pink glows PINK, 2oz)

Glow in The Dark Neutral Invisible Strontium Aluminate Glow in The Dark Fluorescent Pigment Powder (Tangerine glows ORANGE/YELLOW, 8oz)

Glow in The Dark Neutral Invisible Strontium Aluminate Glow in The Dark Fluorescent Pigment Powder (Red glows RED, 8oz)

Glow in The Dark Neutral Invisible Strontium Aluminate Glow in The Dark Fluorescent Pigment Powder (Orange glows ORANGE, 2oz)

Glow in The Dark Neutral Invisible Strontium Aluminate Glow in The Dark Fluorescent Pigment Powder (Yellow glows YELLOW/ORANGE, 4oz)

Glow in The Dark Neutral Invisible Strontium Aluminate Glow in The Dark Fluorescent Pigment Powder (White glows GREEN, 4oz)