France. 1900-27 "Merson". 50c. centre missing, part original gum; centred to right, fine. Spink Maury 120d, €600 (Image1)

Est. £120-240

France. 1900-27 "Merson". 50c. cinnamon and lavender, centre misplaced to foot, large part original gum; fine and fresh. Spink Maury 120e, €500 (Image1)

Est. £120-240

France. 1900-27 "Merson". 50c. cinnamon and lavender, from the upper left corner of the sheet and showing pre-perforating paper fold, large part original gum; fine and spectacular. Spink Maury 120g (Image1)

Est. £250-350

France. 1900-27 "Merson". 1f. lake and yellow-green, vertical pair from the upper left corner of the sheet, the first stamp showing an interesting pre-printing paper fold resulting in a portion being unprinted and with the missing part impression in the margin; unmounted mint, fine and spectacular. Spink Maury 121 (Image1)

Est. £400-800

France. 1900-27 "Merson". 1f. lake and yellow-green, from the upper left corner of the sheet and showing a pre-printing paper fold leaving an unprinted portion at upper left, mint, a few patches of missing gum; fine and spectacular. Spink Maury 121 (Image1)

Est. £300-600

France. 1900-27 "Merson". 1f. lake and yellow-green, block of four from the left of the sheet, variety centre misplaced, original gum with the lower pair remaining unmounted mint; fine. Spink Maury 121f, €1,180+ (Image1)

Est. £150-300

France. 1900-27 "Merson". 1f. lake and yellow-green, from the lower right corner of the sheet and showing a pre-perforation paper crease; large part original gum, light pencil notes in the margin. Fine and spectacular. Spink Maury 121k (Image1)

Est. £200-400

France. 1900-27 "Merson". 1f. lake and yellow-green, horizontal pair from the left of the sheet with pre-printing paper folds affecting both stamps; unmounted mint, fine. Spink Maury 121o, €770+ (Image1)

Est. £150-300

France. 1900-27 "Merson". 2f. deep lilac and buff, unmounted mint, well centred; fresh and fine. Signed Brun. Spink Maury 122, €2,600 (Image1)

Est. £500-1,000

France. 1900-27 "Merson". 2f. deep lilac and buff, block of four, one central hinge, some split perfs., quite well centred and fine. Spink Maury 122, €3,800 (Image1)

Est. £1,000-2,000

France. 1900-27 "Merson". 5f. deep blue and buff, block of four, original gum with the lower pair remaining unmounted mint; well centred and fine. Spink Maury 123, €900+ (Image1)

Est. £250-500