GDL direction slab, Lion Rock area [????- ] | Gwulo: Old Hong Kong

GDL direction slab, Lion Rock area [????- ]

Current condition: 
Ruin

Year completed is: Accurate
Condition at last visit: Top face complete, all directions visible
Date of last visit:
Ref: ROB-01008
Other:

Text on slab:

PB 221 L 68 69 71 Catchment
Coy HQ KH PB 302 L 64 66
Bn HQ SP PB 220 219 L 60 - 70