One of the massive industrial kilns ( they loaded the unfired pots onto frames and moved them throughout the pottery on railway tracks) in Höhr-Grenzhausen acts a backdrop for more…
..24 (?) cylinders. Definitely NQM, but my links to Höhr-Grenzhausen couldn’t be described as tenuous. This is the “Kannofen”, a cross-fired salt glaze kiln that lay dormant for 50 years…
Mainz Daily Photo 