"Is this a military boundary stone?"
No. This is a milestone. The 12.5 one is located on Tai Mong Tsai Road opposite the entrance to Mei Yu Street.
Here are some more around that area: https://gwulo.com/node/8596/photos
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milestone
"Is this a military boundary stone?"
No. This is a milestone. The 12.5 one is located on Tai Mong Tsai Road opposite the entrance to Mei Yu Street.
Here are some more around
Here are some more around that area: https://gwulo.com/node/8596/photos