Lot 41166 – 1924 Everest Expedition: 1924 (Jun 29) 1/2a Postal stationery envelope sent to Major Bailey in Gyantse with a BLOCK OF SIX of the Expedition label on reverse

1924 Everest Expedition: 1924 (Jun 29) 1/2a Postal stationery envelope sent to Major Bailey in Gyantse with a BLOCK OF SIX of the Expedition label on reverse cancelled by the black “MT. EVEREST EXPEDITION / TIBET / 1924” cachets (Waterfall Type IIb), uprated with India KGV 1/4a on 1/2a and 3p tied by PHARIJONG 29 JUN 24, opened for display, one of the largest known multiples of the Expedition stamp on cover and rare sent from Tibet, a showpiece item, ex 1955 Robson Lowe ‘Bailey’ sale lot 175 and Olsson