Part identification (oil pan)

Hey everyone, I have been going through some of my late father's old car parts that he hlaccumulated throughout the years. When he was younger he used to race a 69 swinger with a 360. I know that this oil pan is off of that engine/car.

However I am having trouble identifying the brand and size of this pan. Obviously it is quite large and I believe the sway bar would have to pass through the hole.

Does anyone know what brand this could be potentially size? I have done some research and have not really been able to come up with anything definitive as it is quite old . I am looking to clean up and sell off a few of his old items and this would likely be one of them as I would not use this on a street car. Any help would be much appreciated thanks

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