Radiator
My hopes of finding the original radiator which departed that day on the rolling chassis on its way down south, were dashed by REP being ambivolent rather than helpful; of course, I hardly expected anything else of him.
Replacing this item with a period radiator which would fit proved impossible. I tried various ideas, one of which entailed a complete rebuild of an early Armstrong unit. Whilst it probably would have been satisfactory, it would have cost about £1500 as a re-core would have been necessary.
I was despairing when Andrew Kirby mention that he had two old rads he was about to scrap. One was hopeless, but I thought the other might just fit. Remove the filler cap (later blanked off by a 1927 penny!), juggle a lot, and hey presto, it fits. Well, nearly; the sling bracket needed 'adjustment' and mounting lugs fitting.
The top hose arrangement may be seen - an electric water pump is incorporated in the bottom hose link to the engine. The pump is controlled electronically; as the water heats up, a sensor signals the controller to provide the pump with more power. The filler can be seen here close to the engine. I was even able to use the original top steady mounting point.
Finally, a water temp gauge sender fitting is soldered in place and, horror of horrors, a hole right through the matrix is carefully cut with a hole saw, cleaned up, meticulously araldited and sleeved; this is for the cranking handle shaft. The original had been similarly treated. With a honeycomb matrix, this would have had little effect on its efficiency, however with the replacement, blocking two columns will have reduced its efficiency. The cooling fan which came with the car will probably be used (mounted in front of the radiator).
The modern drain plug will need to be changed, one day.
The unit has been pressure tested - no leaks! Thank you Andrew!