Steven Walske

Steven Carl Walske is an American philatelist and philatelic writer.

He was appointed to the Roll of Distinguished Philatelists in 2017.

[2] He once owned the unique block of four of the 1869 24c stamps of the United States with an inverted center.

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The block of four of the 1869 24c United States stamps with inverted centre once owned by Walske (shown inverted). [ 1 ]