Because of the underwhelming response to my thread on the rare FAT65E4 box I have decided to forego any more Cal .30 LR boxes and turn to my own favorite, the Cal .30 NM.
1957 box, T291, Lot FA 1. Full and sealed. Cartridges are headstamped FA 57 MATCH. The only box I have seen with the basic Jan 57 label without over-labels. All added information is hand stamped. Most likely a pre-production box for inspection and possibly accuracy testing.