727 Trans fluid level???

Thanks for all the replies.
I didn't say I had no dipstick. I said assume I had no dipstick. I have a dipstick. Yes it would be a PITA to run without a dipstick.

The question is proper level relative to the transmission. Chrysler knew what that the operating level should be long before they designed the dipstick, right? Can't make a dipstick before the level is established. I want to verify that my dipstick is accurate. I bought two for 727 340 and they had different fluid level indications. Varied around 1/2". Sent both back. Got a used one from a trans shop, but is it correct.

What's everyone think?