As asked, the question is not answerable. The -4 was made from 1977 until c. 1982. The early examples would have football targets. The speed loader cut came along for the K frames in about 1978 or early 1979. For a time, either type could have been shipped.
We'd need to know the serial number to figure out the possibilities. If the gun is from 1981 or later, the speed loader cut variety would be by far the most likely.