I picked up a nice Sheridan Model A Super Grade last week. Sheridan produced 2,130 of these rifles between 1947 and 1953. This one is still going strong with the only thing being done to it was a new pump head back in 2007. Serial number 2246 puts it towards the end of the production run. For more info on these classic American air rifles check out the link below.
http://ujays.net/sheridan.html
http://ujays.net/sheridan.html