Microphone in Pyscho IV: The Beginning (1990)

In the 1990 movie Psycho IV: The Beginning, we start with an AM radio talk show where they are discussing Matricide, and in the studio there are 3 or 4 Shure SM7 microphones. The screenshot I got does not make it easy to decipher if it’s the SM7 or SM7b. The way I was able to determine which microphone it is was by looking at the date of release…1990. The SM7a was not released until 1999, so the microphones have to be the SM7!