Identify this Trigger Guard

[Texas Red]

Please see the attached pics. Is this an HRA trigger guard? I seem to recall seeing a reference picture that said something to the effect that the small bumps highlighted in the attached pictures indicate a trigger guard manufactured by Springfield Armory. But I cannot find the reference photos, so cannot confirm it.

Does anyone remember and/or have that photo? Does anyone have other or additional data on how to identify post-war trigger guards by manufacturer? Cross-posted on CMP.

TIA,

Tommy

http://i47.tinypic.com/1icq6a.jpg
http://i48.tinypic.com/34s0x20.jpg

[Larry G.]

From what I've read SA has the bump,IHC and HRA do not. But never say never because of part overruns or contracts ending and SA using them.