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(a) a satellite pentagonal pillbox (shown in a government 1:600 survey plan of 1963 but not in any 1:1000 plan); and
(b) the inscription “REN 30th Coy 1914", first reported by Dr. Solomon Bard.
From old aerial photos and survey plan, an earth mound that looks like a double circular earth gun revetment for a heavy 75mm or 105mm AA gun (United States War Department 1944: pp. 110-116) could be found along the watershed to the northwest of the redoubt. It was to the southeast of the ruins of a bunker, which has been incorporated into the Chinese Permanent Cemetery. This revetment-like earth structure was destroyed when the Cemetery was built. The revetment was huge and was almost as large as the 9.2 gun emplacement in Gough Battery. The slopes below the redoubt have several tunnels, probably also of Japanese occupation origin. One is found above the steps of the Lord Wilson Trail leading to the Chinese Cemetery and another near the ruins of a bunker below the northern rock face of Devil's Peak. We leave the nature of the circular earth mound and the tunnels to experts on military engineering.
The 196m site
Further down the ridge, at 196m above the mean Principal Datum (mPD), lies the '196m site.' The site is connected with the redoubt by a firing trench built of stones, which is full of dense undergrowth.
This levelled site is small in size with the ruins of a concrete structure (approximately 40 square metres on plan) that is believed to be an observation post or machine gun emplacement that covers both the redoubt and Gough Battery. Only lower parts of some of the wall structures have remained on site. But apparently, there is no immediate danger to visitors. An area bigger than the 196m site itself uphill has been formed and developed into a plant nursery, probably by morning hikers. Such unauthorised site formation and planting work has not only created visual blight, but has also accelerated the soil erosion process by removing the top soil and the natural vegetation (Figure 6).