Racing decal on fender

[leach]

Anyone know what kind of Racing decal might have fit in this area where you can see the outline on the fender where the paint has faded from car sitting all the years. One of the members thought before that it might have been a MSR-motor sport research with three black squiggly lines from that 1970 racing years would like to put correct one back on the car but it is tuff since can't locate original first owner. Hope someone would have picture from the track or from one of the old racing magazines.