The condensers I have are unmarked.
As regards coils you can run a higher resistance ones with electronic ignition as the system limits the current flow, however with points there is nothing to do this and using too low a resistance coils will allow them to overheat and possibly burn out (I know of two occasions where people have replaced the electronic ignition with points set ups when having problems with their electronic ignition, not changed the coils and burnt out the coils)
As regards coils you can run a higher resistance ones with electronic ignition as the system limits the current flow, however with points there is nothing to do this and using too low a resistance coils will allow them to overheat and possibly burn out (I know of two occasions where people have replaced the electronic ignition with points set ups when having problems with their electronic ignition, not changed the coils and burnt out the coils)