The Helen Davis Collection of Penguins: Falkland Islands: 1960-66 Birds, die proof of 2d. Gentoo Penguins vignette on wove paper (144 x 111mm, folded to 74 x 111mm) with engraved die number “21650” (reversed). Heijtz cat. £1,200. Photo. (Image1)

The Helen Davis Collection of Penguins: Falkland Islands: 1960-66 Birds, die proof of 51/2d. Rock-Hopper Penguin vignette on wove paper (142 x 111mm, folded to 71 x 113mm) with engraved die number “21659” (reversed). Heijtz cat. £1,200. Photo. (Image1)