Looks good to me. Most US mint sets beginning around 1968 or so will be cameo. The older sets are hit and miss...but the newer the set the more likely he deep cameo.
It certainly looks cameo. One question, what is up with th "1" on the quarter?? It looks incomplete in the pic.
Make that 1973 and I'll agree. From 68 to 73 cameo is kind of hit or miss and deep cameo is unusual but they can be found. After 73 strong cameos become the rule not the exception and deep cameos are fairly common. In general the later the proof set the stronger the cameos.
