Some drop bolts, later recessed variety, Dia Compe, on the 'Bay:
http://cgi.ebay.com/ws/eBayISAPI.dll...ADME:B:SS:US:1
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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