Andrew, Thank you for the other view, the one I posted was from Ground Power, a Japanese book magazine. The light tanks would be in Battalion HQ and carry a solid diamond tactical sign. Here is a 4th Battalion Royal Tanks Mk VIB, the diamonds would be blue, The Battalion colors are what the instruction book indicates for HQ, 4th Battalion was blue. 7th Battalion had red and green as Battalion colors as indicated here on the A12 GREYNAM Battalion HQ Infantry Tank Mk II. Diamond red over green. Now those opposite arrows are odd but they could be German as the turret may suffer burn damage and the arrows are rather clean.