Help Identifying Potential Surcharges On Japan Occupation

I found these two inside of an old rice paper album with other WW2 era stamps with overprints and postmarks in occupied territories. I can't find anything about these two in the catalogues.

The 4 sen doesn't have much of a PM, but the 2 sen's PM dates it at June 26, 1942, the height of Japan's dominance.
The top portion of the comb cancel shows the characters #20013;#22830; reading right to left, signifying it was used at a "central office", and could have been one within Japan but could also be one of the occupied territories: Hsinking, Penang, etc that are know to have this cancel.
Thanks

The only surcharges on The General Nogi stamps were from the japanese occupation of Burma. The Red stamp is missing the large C to it's right.
It could be just a bogus surcharge..
The green stamp Admiral Togo was never surcharged with a 2C only with 4A & 15C.

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