OWC is a term that stands for "Original Wooden Case" and is often used to denote wines that are of significant quality and designated for bottles that can age as they are sent out from the winery in wooden case boxes, that have been sealed shut. When these wines are put up for sale after time in the cellar, many collectors consider a sealed and unopened wooden case to be more valuable, since it is evident that the wine has not been tampered with or manipulated since it left the winery and also because the cases are suitable for future storage of the bottles.