What is the earliest headstamp anyone has seen for Lake City 7.62 brass?

[Bulletguide]

As I understand it, final load evaluation for the new 7.62 x 51 cartridge was completed in 1963. I believe Lake City was chosen to produce the M118 rounds. I have not seen
Match stamped brass from that early date but have some 1964 LC head-stamped brass. Has anyone seen that early Match brass? Just wondered when it first showed up. I'll post some photos
of what I have as soon as I can get a decent picture of it.

Also have some never loaded Lake City 30-06 Match brass somewhere, will post photos of that as well.

I can understand a bit better now why folks start collecting this stuff, it's a whole sub-set under the umbrella of interest in Military history and the M1 and M14 in general. I have some
boxes of new M118 rounds from the 60's, seems a shame to shoot it now through I'm sure others would do so gladly. I can see both sides...

[RCS]

photo shows a steel case LC 56, brass case LC 54 AP and a 22/7,62x51mm WCC 58

[RCS]

photo shows a white tip low recoil 7,62x51mm and a WCC 58 National Match load with 200 gr bullet

[RCS]

Photo shows some examples of the development of the 7,62x51mm starting with the 300 Savage case FA 46 to the 7,62x49mm and than the 7,62x51mm

all headstamps are from the 1940's to 1952

[Phil McGrath]

I think 1962/63 was the first years of XM118 and 1964 it became the official NM loading and the X was dropped off. I'm a small time NM ammo collector myself, I'm looking for a clean unopened box of the XM118. Finding the common M118 and M852 is pretty easy, the hardest too obtain is the Marine G4 ammo and thankfully I have a box.