looks German, cant add anything else, sorry.

I am sure its just as easy to build your own and maybe from those moulds produce static variants for museums etc at a much lower cost, maybe borrowing a set of moulds and having them transported, fear of damage, insurance etc it was financially cheaper and safer to do at home.

Maybe a second airworthy one to follow pretty soon 

Fantastic update Bob and that OneDrive is a fascinating look into the work you are doing, thank you

27N  is  Airborne fire-fighting equipment other than that I cannot help

Glorious ! loved the vids, very well done 

And less news on this forum could mean more news in flypast, so yes John is right in keeping up with it

Spot on post JB

Thanks for clarification Bruce