Is there any markings on ribs of strativari violins?

Almost all violins have a narrow inlay called "purfling" running around the outside of the face and back ( a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjmOlQ2deVcQZXMF1kQVdxIRs6PTIY4qsBvNmxTHHOpMPjuE_ieSTqL8D7Qrm-PWKH4ejZcVrmSe6fqIwIHoMXR3Rr9-6L00pkGZeFsmbZw6ppo9cnvYPPsJEa8JwVKN4PrtuCVcvu7/s1600/LWPT.jpg" rel="nofollow"http://4.bp.blogspot.com/_w3MxjnbPXmI/TH…/a ). Aside from that, there are no markings usually found on the ribs of violins by Stradivarius or other makers.