Gmund Color System Envelope Swatchbook - each envelope printed with color name and number, paper weight
{"Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image Software": "Adobe Photoshop CC (Macintosh)", "Image Copyright": "LCI Paper", "Image ExifOffset": "144", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "400", "EXIF ExifImageLength": "400"}