Orange West (or East?) German vase/jug - Gräflich Ortenburgsche, Tambach

Hello everyone,

I am trying to identify the item in the following photos.

It is a short bright orange glazed vase/jug. The only markings on the bottom are 678/2. No makers mark.

I've run the model number through google with a variety of producers to no avail, and consulted a number of other sites to try to identify the maker but no luck. I have not seen images of the same shape anywhere during my research. Perhaps it's not an original but it would be good to know either way. I thought it might have been Steuler due to the way the handle is attached and the shape of the rim which is similar to the Continua range but have found nothing to help confirm/deny this. Clay seems to be red/brown rather than white.







Can anyone help? Thank you all in advance.

Gräflich Ortenburgsche, Tambach :-)

Danke schön!

sehr gerne :-)