Palo Alto Speedometer just went through my gauges on a 356, Highly recommend! Had one done at Classic Instruments in Mi., Got it back an Looked as is the person putting back together ate chicken wings for lunch on the gauge face, Sent it Also to palo alto...
Also used Palo Alto Speedometer on an OT car with great results. Adam Sent from my iPhone using H.A.M.B.
I have a full set that have been rebuilt and converted to 12 volt. I took them out of a 1950 Plymouth Suburban that I purchased and replaced them with custom gauges. I will be happy to send pictures and will sell the set cheaper than you can get yours rebuilt.
John Wolf Instruments in Willoughby,OH did mine.Couldn't be more pleased. Williamson's is good but 1 man operation so the wait can be 6 months sometimes.