1907 5c yellow and dull blue, center inverted and misplaced showing parts of the vignette at both right and left, small h.r., minute thin from hinge removal mentioned for accuracy only, v.f. appearance. One of the most dramatic errors of this issue, with clear 2009 APS certificate, ex-Mayer collection. Brian Moorhouse mentions that less than 10 copies of this variety exist, this being the only known with additionally displaced center (Cat No. 62var) (Image)

Est.US$5,000

1907 2col claret and black, center inverted, near perfect centering, small h.r., light natural gum bend and minute perf. flaw at top (the latter not mentioned on accompanying certificate), still v.f. and exceedingly rare, with 2009 APS certificate, ex-Mayer. Less than five copies are known of this error (Cat No. 68var) (Image)

Est.US$5,000