Which major set from the 50's is the more difficult to build-on in high-grade condition ?
With hard colors on bottom, 1954 Topps and 1955 Parkhurst are tough, being condition-sensitive, but my question is about the 1952 Parkies:
Is it me or they are harder than other issues to find in high-grade?
I post about regular issue...(not about 55 Quaker SPs

)