1924 Olympics 10c essay, 10x6.5cm, handpainted in fine detail in the issued design and colour, signed by the designer E. Becker, mounted in black surround, attractive (Image)

1924 Olympics 10c essay, 10x6.5cm, in pencil and paint in blue and green similar to issued design, signed by the designer E. Becker, mounted in black surround, attractive (Image)

1924 Paris Olympics photographic essays in brown (3), stamp size with hand-cut perfs affixed to an envelope, all similar to the issued designs of the 25c, 10c and 50c, endorsed at top "Epreuve photographique" and signed E. Becker, one of only two known groups of these essays (the other in blue) (Image)

1924 Paris 25c essay printed by lithography on stout bluish paper from a drawing by E. Becker, in a design which lead to the issued 50c, very rare and attractive, signed Holcombe and cert. Sismondo (2010) (Image)

1924 Paris 10c deluxe proof in issued colours, fine and very rare with only 25 printed (Image)

1924 Paris 10c die proof in green on glossy paper, small white patch on "M" from poor inking (not a scuff), fine (Image)

1924 Paris 10c die proof in blue-green on glossy paper, very fine (Image)

1924 Paris 10c die proof in issued colours on wove paper, tiny scuff by laurel crown (Image)

1924 Paris 10c imperforate stamp-size proof in issued colours on glossy paper, very fine, signed J-F. Brun (Image)

1924 Paris 10c stamp-size die proof in green affixed to card, fine (Image)

1924 Paris 25c deluxe proof in issued colours, fine and very rare with only 25 printed (Image)

1924 Paris 25c die proof of the frame in brown and centre in carmine separately on gummed paper, endorsed "C45" at top left, minor handling bends, fine (Image)

1924 Paris 25c die proof of the frame and centre separately in black on gummed paper, endorsed "C63" at top left, fine (Image)

1924 Paris 25c die proof in lilac and blue-black on glossy paper, signed by the engraver G. Daussy, minor handling bends, endorsed "B-5-6", fine (Image)

1924 Pairs 25c die proof of the centre only in carmine on carton paper, fine (Image)

1924 Paris 25c die proof on the centre only in red on carton paper, minor handling bends, slightly reduced with partial endorsement "1-3" on reverse, fine (Image)

1924 Paris 25c die proof in lilac and blue-black on gummed paper, signed by the engraver G. Daussy, fine (Image)

1924 Paris 25c die proof in grey-blue and brown on carton paper, endorsed "B-4-6" on reverse, fine (Image)

1924 Paris 25c die proof in light brown and dark brown on carton paper, signed by the engraver G. Daussy, endorsed "B-1-14" on reverse, fine (Image)

1924 Paris 25c die proof in ochre and red on carton paper, signed by the engraver G. Daussy, endorsed "A-4-5" on reverse, fine (Image)

1924 Paris 25c die proof in light brown and dark brown, endorsed "B-1-14" in pencil on reverse, signed by expert Calves (Image)

1924 Paris 25c die proof in red and dark blue with coloured surround on carton paper, fine (Image)

1924 Paris 30c die proof in issued colours with coloured surround, signed by the engraver G. Daussy, very fine, reverse with O. Roumet expertising hs (Image)

1924 Paris. France 30c die proof in brown of central vignette only (without value or frame), very fine and scarce (Image)

1924 Paris 30c die proof of the centre only in red-brown on glossy card, fine (Image)