1969 383HP block barracuda

Cast in 6/25/68 (or 8/25/68) and machined and built in 12/27/68. That's almost the middle of the production year. They started stamping blocks in mid year of 68 and all 69's had full vin stamp right? Or is that all hearsay?
The casting date is 6 25 68.
Unless there was a mistake at the factory which sometimes there was, all blocks and transmissions were required by federal mandate beginning for 1969 year model (not to be confused with casting dates or build dates) to have the entire vin stamped on them which is stamped on the machined pad as shown in my photos and transmissions also have a pad for stamping...in 68 and earlier blocks just the last 8 was stamped but it was actually stamped on the back of the block drivers side on the bell housing flanges and the trans was stamped in the same place on the bell housing right where it meets up to the engine...