From Cyclart's web site (restoration section)
CyclTique: Starting with a damaged or neglected bike, missing parts are replaced with correct era used ones, then all parts are cleaned, polished and rebuilt. If decals & striping are visible, they are photographed, traced and reproduced. In some cases, we can save some portion of the original finish and match the new paint to the old.
Bold is my edit.
Sounds like they offer the service, I have no experience with Cyclart other than a query about some
Eisentraut decals so I won't comment on their business practices.
I've seen Bilenky's work and I would not hesitate to recommend them.