Sent to me by harrym via email. He wrote:
You may also be interested in the 1945/46 Kai Tak airfield information chart attached herewith which gives a good idea of the airfield’s very constricted and potentially hazardous nature, obvious from its close proximity to Lion Rock and other rather knobbly terrain! I operated from it during that period and later in the 1950s, as well as from the ‘new’ Kai Tak (opened in 1958) until my retirement from flying in 1982.
Correction of date: runway extention was made in 1950, so the date was set to 1951.