Thansk you for all your supportive comments!
there has been a bit more recent progress,.
The 3 x cowl vents were made from some spare cast items I had from an unknown source.
By the time that the ship was in German hands, the vents were made rather taller than as originally built-
-to clear the radio-shack as well as the increased height of the bridge
these cast vents were hollowed out and fitted with a thin wire rim on their fwd face to increase the aperture size of the cowl
subsequently whilst perusing the plans very close up--I reckoned that the cowl flare needed to enlarged slightly
( not by too much--just to be 'suggested..'.
I did this by adding a secondary slightly larger diameter circle of thin wire to the cowl--
and with paint the 'flare' became just apparent
my interpretation
of the unusual layout davits has been made and installed;
along with a ships boat being carved and
fitted with a cover made of white glue-over-a-brass-wire ridge-pole.
At the same time the masts went up... a near-parallel lower tube mast with a tapered section above the ' step'
In the image I have of the vessel in German navy ownership, she is carrying a gaff on aft mast and extended height thin pole masts
--I reckon for WT ariels
At first I was un-nerved by the differing mast total heights relative to the funnels as shown on the plan-as-built
but breathed a little easier after further study of the the image below of
Schelde in German hands !
Next challenge is the towing hook set-up...
According to my Dutch Mentor...( Maarten!)

...
Tugs in Dutch ownership traditionally always used the large Towing bollard twin Sampson posts -
But by the time the Tug was under the command of the Imperial German Navy
who eschewed the bollards in preferring a quick release hook system;
it is highly likely that she would have been fitted
with a conventional quick-release hook set up--
this would have been grafted on to the Sampson posts
perhaps in the spirit of manner of this image of a modern equivalent
but in the style of this contemporary German tug ( card) model
and also as seen on the builders model of the German Tug
Retter ( 1885)
who shared the Vulkan Towage with
Schelde
lets see how I get along!
JIM B
