It is in very good physical condition except for a few minor scrapes, see pictures. It is 14 x 11 x 7.
I tested it with a quarter and it seems to work as it should. There is no key but it is a common key and should not be hard to fine. The item "Vintage Usps Post Office Postage Stamps Vending Machine 5 Cents" is in sale since Monday, August 27, 2018. This item is in the category "Collectibles\Banks, Registers & Vending\Vending Machines\Postage Stamp".
The seller is "oldsandpontiac" and is located in Greenville, South Carolina. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Bahamas, Uruguay.