FRIEDRICH A. DETJEN (DEUTSCHLAND) GMBH & CO.

The flag is white with a red-bordered white diamond containing a black capital D. Mobil’s chart makes the diamond touch the top and bottom of both flag and funnel band. Website-animation black marks above and below the flag were identified as shadows, not flag elements. A separate black-and-white website flag showed a vertical chevron and central D.

The funnel follows Ganges, with a thinner diamond frame, about the letter’s stroke width, and top and bottom points apparently extending throughout. The photograph’s angle prevents determination of whether D has serifs. The flag follows Nüsse’s table flag rather than those funnel proportions.

Mitchell gives no explanatory information for this funnel. The flag is reconstructed from it with support from the former website description, but Rosanoski explicitly calls the portrayal a guess.