What side is the oil dipstick?

[bamabaxter]

I know this sounds odd but what side of the motor should the dipstick be on if it is a 72? Don't worry I am not confused about how to check the oil but a couple of my friends said it was odd that my oil dipstick was on the passenger side for the early year model. I am just curious also. If it supposed to be on the driver side then this would confirm that this isn't the stock motor which I was almost sure of anyway. If anyone has any info I'd appreciate it a lot.