I'm considering buying the above Horn that's available, I believe it's the exact same model shown in this image of George in the Studio, I'm pretty sure it has a 0.565 single bore, however, I don't know what the Lead-pipe shank Taper is on this model.
I'm hoping JohnL may be able to pop in and maybe help me out

Of course I would be grateful to anyone else who has experience with these quite rare horns and let me know.
I play DE set up all the time now ( LBK / LB114 / K8C ) all of the time, so depending on what info comes back, hoping Doug might be able to supply a suitable shank if needed.
To be honest, I normally get these Lead-pipes pulled by Brad if he's doing other work, but on this occasion, I would
only need the Lead-pipe pulling so maybe a Rath visit on the Cards......
Thanks, Al