403 Barn Find!

[Rubbond]

Aren't these just standard knock-ons? Bolt-on wires sound very tacky,
American even.
The ones in the photo require an octagonal spanner. Often you see the
illegal winged type which give you something to clout with a copper hammer.
To convert you would need to replace the standard hubs with the splined /
threaded ones.
I think wires would look rather splendid on some of the sportier models.
Maybe something for Eric?
Tip: Get painted wires - the chromed wires look pretty tacky too, and they
always rust....