Another M-1 '66 or '67

[Pablo]

I bought this helmet at a yard sale. Can anyone provide any info to make this helmet more interesting? The liner stamp is on the side band instead of the back....I had to remove a clamp to read it. I did not see any more marks on the liner or shell. Using my wife's new eyes the liner stamp seems to read:

Liner Soldier Steel Helmet
M1 Infantry Type 1
25 July 66 DSA 100-67C-0207

Did she read it correctly? I assume it was mfg in 1966? Thanks!

[NickD]

theres not really much else i can tell you about the liner which you don't already know in that its a mid 60's nam era version.