"DEUTSCHLAND Konstanz, Bistum Hermann von Arbon, 1139-1166. Brakteat o. J. 0.45 g. Klein/Ulmer 2. Cahn 35. Sehr schön-vorzüglich."
SINCONA AG Auction 22, 1491 18.5.2015 (Starting Price: 100 CHF)
"Germanic Lands, Constance (bishopric). Hermann I v. Arbon. 1139-1166. AR bracteate (22 mm, 0.39 g). Bishop standing facing, holding crozier, between two towers. Klein & Ulmer 2; Cahn 35; Bonhoff 1804; Wüthrich 224. Deeply toned. Nice very fine for the issue. From the Estate of Benjamin R. Bell. Ex Count Reuttner v. Weyl Collection."
VAuctions Triskeles Sale 23, 701 6.4.2018 (Result/Price: 60 USD possibly +extra charge)