Describes a book that is sufficiently worn, to the point that its only merit is as a Reading Copy because it does have the complete text, which must be legible. Any missing maps or plates should still be noted. This copy may be soiled, scuffed, stained or spotted and may have loose joints, hinges, pages, etc.
The grade PO-1. A coin with readable date and mint mark (if present), but little more, barely identifiable as to type. (One-year type coins do not require a readable date to qualify for this grade.) See Also -- PO-1
deserving or inciting pity; "a hapless victim"; "miserable victims of war"; "the shabby room struck her as extraordinarily pathetic"- Galsworthy; "piteous appeals for help"; "pitiable homeless children"; "a pitiful fate"; "Oh, you poor thing"; "his poor distorted limbs"; "a wretched life"
39 High-pressure and low-pressure sodium discharge lamps The chromaticity of eight (or 14) test colours standardized in DIN 6169 that occur when they are illuminated by the light source being tested are compared with the same test colour when illuminated by the reference light source. The smaller the difference the better the colour rendering property of the lamp being tested. A light source with an Ra value of 100 shows all the colours perfectly, as in the case of the reference light source. The lower the Ra value, the worse the colour rendering. Test colours for Ra8