[CR]Mafac? Parts Question

Example: History:Ted Ernst

Date: Sat, 09 Oct 2004 13:00:10 -0400
To: gpvb1@comcast.net, classicrendezvous@bikelist.org
From: Jeff Slotkin <jeffslotkin@comcast.net>
In-Reply-To: <100620041524.17584.41640E460002229B000044B02200751150CE0D909F09@comcast.net>
Subject: [CR]Mafac? Parts Question

>Greg Parker supplied this web link:

...so, click on it, look at the "miscellaneous Mafac" pic that appears; there is a bolt/washer/spacer/nut assemblage at lower right in the pic. What is it? (I have a bunch of them).

jeff slotkin
goose creek, sc