On Tuesday, July 10, 2018 at 9:33:34 PM UTC-4, Jeff Liebermann wrote:
On Mon, 9 Jul 2018 22:58:39 -0400, Frank Krygowski wrote:

The reason I'd like photos is that Emanuel seems to imply that a hole in
the stays is the original method of mounting the chainguard. I think
that's unlikely. I wondered if there are brazed-on tabs or some other
feature that we don't know about.

Photos, from his web site:
http://user.it.uu.se/~embe8573/work-photos/

This might be the bicycle. Notice the chain guard and welded mounting
bracket in the middle of the right chain stay:
http://user.it.uu.se/~embe8573/work-photos/hermes.jpg

There also seems to be a horizontal welded tab protruding from the seat tube
above the chainring. (Or underneath the chainring in the photo of the inverted
bike.) That may be a mounting point for the top surface of the chainguard.

The chainguard also seems to have a bracket that would connect the
chainguard's bottom to the underside of the bottom bracket area of the frame.
Perhaps that's the spot he wants to drill and tap?

- Frank Krygowski