It was the large option at the time but it is not as large as the one in your link. Mine is also all grey. I got 2 cats from my local animal shelter, they were about 2 and 3 months old at the time and the younger one was a little bigger than the older which should have been a warning sign. They are both American shorthairs. My older cat is white with a calico saddle and is only a little bigger than average, she is 14 lbs. My younger cat is almost solid black with 2 little white toes on one of his back feet. He is 22 lbs, over a foot tall, and from his nose to the end of his tail he is 39inches. He can stand on his back feet and get stuff off the kitchen counter.
There were protests and threats aimed at TOS for being too progressive, particularly on racial issues. TOS didn’t make the command structure clear but as bridge officers and department heads Uhura and Sulu can’t be any lower than 6th in command and TOS had the first interracial kiss on television. Yeah it’s pretty bad looking back at it now but keeping in mind that the first season aired less than 2 years after the end of segregation helps temper the shock.