Engineering drawing drawing on A3 may be enlarged to A2 or reduced to A4. The U.S. customary "A-size" corresponds to "letter" size, and "B-size" corresponds to "ledger" or "tabloid" size. There were also once British paper sizes, which went by names rather than alphanumeric designations. American Society of Mechanical Engineers (ASME) ANSI/ASME Y14.1, Y14.2, Y14.3, and Y14.5 are commonly referenced standards in the U.S. Technical lettering is the process of forming letters, numerals, and other characters in technical drawing. It is used to describe, or provide detailed specifications for an object. With the goals of legibility and uniformity, styles are standardized and
Ledger stone are more widely used in Germanic and Scandinavian countries. In German the word "Grabplatte" (literally 'grave panel') is used for flat slabs but can also refer to slabs vertically attached on walls of churches and graveyards, and often to plain stone panels covering graves in cemeteries as well. The French term is "dalle funéraire". Because they are floor coverings, ledger stones are vulnerable to wear from foot traffic and damage from structural alterations to churches. The Ledgerstones Survey of England & Wales exists to record the information on the stones before it is lost. Ledger stone A ledger stone or