Tubular pin tumbler lock - Design. 1  The design of a tubular lock is similar to the pin tumbler lock, in that there are several stacks of pins. The key is a cylinder shape with notches cut around the outer or (rarely) inner edge. Each of these notches depresses a single pin inside the lock to a specific height allowing the lock cylinder to turn freely.
With more than 31,000 retail locations and the most frequently visited website in the federal government, usps.com, the Postal Service has annual revenue of more than $65 billion and delivers nearly 40 percent of the world's mail.
A 98-cent stamp is the standard rate for small letters and postcards (up to 1 oz.) heading out of the US, including Australia. Unless you meant a greeting card the size of a letter sheet of paper? That'd be $1.24, or more depending on weight. (Also, for the record, the next postage increase is due in May 2011.)