They consented to the terms of sale when they listed it. They COULD have set a reserve, but didn't. I have sold things for far less than I thought they were worth, but it goes with the territory.
Keep copies of all the correspondence. You may need them someday.
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1971 Paramount P-13 Chrome
1973 Paramount P-15 Opaque Blue
1974 Raleigh Professional Blue Mink
1991 Waterford Paramount
Holland Titanium Dura Ace Group
Holland Titanium Ultegra Triple Group