stamp on 1903 barrels

[RCS]

Can anyone provide any information on this small u shaped stamp found under 1903 barrels ? I believe it was done by the Greeks on 1903 rifles that were provided to them during the post war years. Attachment 90380

Information

Warning: This is a relatively older thread This discussion is older than 360 days. Some information contained in it may no longer be current.

[browningautorifle]

Is it actually "U" or is there more?

[Chuckindenver]

that is a strange T.
many no Greek rifles iv seen have it.
maybe targeted.