Makings on inside infantry visor

[gtbpappy]

Hello, can anyone tell what this says? It's inside an infantry officers visor. Thanks.

[J C Gray]

Hello, can anyone tell what this says? It's inside an infantry officers visor. Thanks.

Geprüft: Stab II. / I.R.??

[phild]

Realizing we have no photos of the entire cap, but I would assume that this was upgraded from an NCO to an officer as I do not think that Officer's had to have private purchase uniform items verified or authorized by the unit and so marked.