Mortar can be tinted to blend or to contrast with the brick color. It is important to keep mortar mixing and tooling practices uniform, especially when using colored mortar. A slight variation in mortar color can have a dramatic effect on the appearance of a finished wall.
O-Card The O-Card is a Slip Case with an opening at both ends. Both the O-Card and Slipcase can be used to package multiple disc sets or single cases and packs and make you product feel a little more exclusive.
Answer Wiki. The short answer is that American Express cards have a different PAN format than Visa, MasterCard and Discover because they offer a different kind of financial service. American Express cards are travel and entertainment cards. The digits on the front of almost all credit cards are known as the Primary Account Number, or PAN. Almost all credit card companies generate PANs (including debit cards but not including merchant cards) according to ANSI Standard X4.13-1983.