I remember that bible as well. It was definitely the green one, that had the dinosaurs. In my 4 and 5 year old mind, while sitting thru those boring meetings, I would always stare at the dinos on the inside covers. It was the "coolest" thing in any WBTS, that I remember.
Now in response to the OP's showing of those calendar pics, I do not remember them. They were probably before my time. One thing I do notice about the baptism picture, it looks like everyone being baptized is an ADULT. I do not see any 12 and 13 year olds getting dunked. Looks like a fully bearded man going under, and one leaving the water. The female entering the water, appears to be very adult as well, lol. Everyone else is observing.