Print Substrate Colour Difference: common term for two the same postage stamps with no print substrate colour agreement |
Paper Colour Difference: common term for two the same postage stamps with no paper colour agreement |
Paper Colour Shade Difference: common term for two the same postage stamps with no paper colour shade agreement |
Paper Quality Difference: common term for two the same postage stamps with no paper quality agreement |
Print Substrate Kind Difference: common term for two the same postage stamps with no print substrate kind agreement |
Paper Kind Difference: common term for two the same postage stamps with no paper kind agreement |