3300 1914-15 "GRI 3d" 5mm opt on Marshalls Yacht 25pf,opt setting VI, pos 2. VF fresh M. Mi 5I cat €380+, SG 54 cat £400 plus premium for rare setting. 2010 BPA photo-cert (P) $375 $500
3301 1915 "OS GRI 1d" opt DNG Yacht 3pf.Superb MUH, top marginal. SG O1 cat £28 for M, should be at least £56 for MUH, Mi D1 cat €70. Exp Hoffman Giesecke (P) $50 $80