Details
used -- ½d. on 6d. orange-brown, variety surcharge double, neatly cancelled clear of surcharge; minor thinning at right though a fine looking example of this rare error. Ex Doolittle. S.G.28b, #1000. Photo
Further details
Note: The Charlton Henry collection contained a similar example, and the Heathcote collection contained a pair on local cover to Fairfield.