1923, 2¢ Harding, imperf (Scott 611), enormous margins showing parts of eight adjoining stamps, a Superb jumbo, Top of the Pop, highest graded example, with 2015 and 2008 P.S.E. certificates graded Gem 100J.
SMQ Gem 100; $150 for normal 100. (Image)

1923, 2¢ Harding, imperf (Scott 611), horizontal pair with vertical guideline between, enormous margins showing parts of ten adjoining stamps, a Superb jumbo, Top of the Pop, highest graded example, with 2015 P.S.E. certificate graded Gem 100J.
SMQ Gem 100; $300 for normal 100. (Image)