Potential buyers beware. I'm assuming this to be an NOS fuel pump that is how many years old?? While it is a tempting purchase; the extreme danger associated with installing and running a pump like this is the fact that unless new internal parts that are known to be compatible with today's gasoline have been installed; you take a real risk in ruining your engine. Today's motor fuel will destroy the diaphragm material that was originally used in these pumps in short order. A cracked diaphragm will allow raw gas to be dumped directly into the crankcase; where it will dilute the oil and destroy engine bearings within a matter of minutes.
So if you would like to purchase and install this new pump on your engine; don't do it without first going through it and replacing the internals with current production fresh parts.