I've received a query from a collector in the USA who is restoring a Folbate A3 and (as happens to so many of us) he's ended up with tha couple of spare parts, as illustrated below.
The large circular piece is the wheel endcap and was included in the image for another reason. However, the bits that the chap has spare are the two circlips and the single round piece with the four small holes.
Any ideas anyone?
Hmm well I suppose the first question has to be is there any chance that the extras have found there way into the box of bits acidentally? My reason for asking is that the round object with four holes looks remarkably like the nut used to retain the disc on an angle grinder.