"Naumburg - Zeitz, Bistum. Udo I. von Thüringen 1125-1148. Brakteat. Berger 1983, Bonhoff 923. 0,86 g. Exemplar der Sammlung Bahrfeldt. Sehr schön - vorzüglich"
WAG Online oHG Auction 85, 1089 8.4.2018 (Result/Price: 400 EUR possibly +extra charge)
"WORLD Coins German States - Brakteat n.d, Silver, UDO I 11251158, NAUMBURG Archbishop holding lilied scepter, right hand raised. Two crosses in field.Berger 1983; Slg. Bonhoff 923.0.86 g. R Very fine +"
Schulman b.v. Auction 354, 721 4.11.2017 (Result/Price: 320 EUR possibly +extra charge)
"GERMANY, Naumburg-Zeitz (bistum). Udo I. 1125-1158. AR Bracteate (31mm, 0.87 g). Naumberg mint. Half-length bust of Udo facing, holding lis-tipped scepter; cross in circle, with pellets in quarters, on breast; cross to left. Gotha 73a; Löbbecke 638; Kestner 1983. Near EF, toned, slight crease at 3 oclock. Property of Princeton Economics acquired by Martin Armstrong. Ex European Private Collection (Sothebys, 9 October 1995), lot 467."
Classical Numismatic Group, LLC Auction 90, 2194 23.5.2012 (Result/Price: 800 USD possibly +extra charge)