Chemtoy Super balls

[Denny]

I'm looking to complete a run of 1970 New York Yankees Chemtoy super balls. I need Bobby Murcer, Ralph Houk and Billy Cowan to finish. I know this is an oddball collection, but does anyone have any ideas on where to find the final 3 balls? Any help would be appreciated.
Denny

[ullmandds]

id suggest posting this on a more modern part of this site as a start.

[Leon]

id suggest posting this on a more modern part of this site as a start.

done

[basesareempty]

I have them. PM sent.