Looked at and shot a 17 no dash model. It shot great but sometimes after a reload the cylinder/hammer and trigger would be locked up. This required the owner to open and close the cylinder a couple of times,fiddle with the rounds and ecject mechanism then the gun would cycle.
It did not look dirty.

Can every problem be repaired?
S/W service told me they only repair back to about 1975.
Should I buy it?