The Bornean orangutan is listed as Endangered and numbers approximately 41,000, while the Sumatran orangutan is considered Critically Endangered with an estimated population of 7,500. A century ago, more than 230,000 orangutans likely roamed in the wild.
Making the world better, one answer at a time. If you go to the United States Postal Service web-stie, you will find that one US First class stamp ($0.42) will cover the cost to mail a letter that weighs up to 1 ounce, about 28.35 grams. Thus, the average weight of a letter is one ounce or less. If you go to the United States Postal Service web-stie, you will find that one US First class stamp ($0.42) will cover the cost to mail a letter that weighs up to 1 ounce, about 28.35 grams.  Minor edit?
First-Class Mail International is a USPS trademark. Note: The cost of postage will appear on all international shipping labels. Maximum weight for letters is 3.5 ounces. Maximum weight for large envelopes is 4 pounds.Size requirement for large envelopes is 6-1/8 to 12 inches high, 11-1/2 to 15 inches long, and Â¼ to Â¾ inch thick.or items sent in a Priority Mail Flat Rate box provided by the Postal Service, the domestic shipping rate is the same regardless of weight or destination. For packages less than 20 pounds, and larger than 84 inches in combined length and girth, a Balloon Price may apply. Delivery confirmation is free for Priority Mail.