Old style platform lamp post found on many Victorian Railways stations in the early to mid-1900’s. These are in two parts – a hollow post and a lamp piece that fits on the top. A micro-LED can be inserted into the lamp, with the wires threaded down the post.
The micro-LEDs can be purchased here:
https://www.ebay.com.au/itm/383214316291
(Photo courtesy of Murray McIntosh)