Kut Sg131Ac Damaged Value Tablet

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Hoping someone can explain/illustrate the above stamp. I have the SG diagram that shows the damaged value tablet but I don't know what I am looking for. Any help would be great. Also I have quite a few of these stamps and some have ink that has run into tablets and such. Is this common with this series of stamps?

Its the lower right part of the tablet

The value tablets are the "1c" areas. The damaged tablet, and the subsequent retouching, are found under the "c" of the bottom left tablet (bottom left corner of the stamp).

This occurs in row 9, position 6 of frame plate 2, according to Five Reigns.

The bible for these stamps is R.D. Berrington's A Handbook on King George VI Issues of Kenya, Uganda & Tanganyika. According to an old Grosvenor auction description, there is a plate scratch on this issue that runs from row 1 to row 10. If you have access to a philatelic library, you may be able to borrow Berrington?

Thank you for this information. From what I can see in the SG examples it appears the cross hatching is missing in the damaged tablet and the retouched version has "wobbly" horizontal lines for shading.

What you're looking for is the relative absence of shading to the bottom right of the left-hand value tablet. Thus occurs in the black/red-brown issue of 1942, perf 13 1/4 x 13 3/4. There's also a retouch that sought to make this good. The retouching is also present in the black/dark brown of 1948 (same perfs). This from Murray Payne.