Have picture but see no way to post it. Also from what I understand on previous post any cay from 69 in same time frame could have same P9T04A number but in combo with correct vin makes it original to car.
As a non supporting member you have to use a third party photo sharing site or use your free photo storage in your Google or Amazon Prime accounts and make that folder and contents public, then use image tags in your post to insert the photo. Or the easiest option is to become a supporting member here and then be able to upload direct to our site.
As to the code - Yes since it is only a year, date, option stamp every M20 transmission made on Dec 4th 1969 will match in any car line across the wide GM spectrum. The partial vin makes the whole code unique to your vehicle.
If you get an exact match on-line that is not about your car, and the vin stamp is not a restamp it may mean that at one time your transmission was separated from your Camaro, and then used and therefore in that post associated with another vehicle, but sometime after the transmission was reunited.
Lots of folks swapped engines and transmissions between Chevelles, Nova's and Camaros over the 50 years. The key in the situation above is that the transmission you currently have wasn't restamped to match your ride.
Lets assume it is unique to yours, most of the time they are unless it is a high-end option desirable Z28.