Related by context. Frequent words. (Click for all words.) 63 overprint 58 overprinted 55 overprinting 52 Proofs 49 chalcocite 49 biotite 49 pyrite chalcopyrite 48 Banknotes 48 verso 48 sulphide minerals 48 siltstones 47 chroma 47 Duplicates 46 photographic prints 46 facies 46 dacite 46 PCGS 46 striations 46 clasts 46 beryl 46 prints 45 schists 45 engravings 45 Etching 45 scrollwork 44 watermarks 44 copper oxides 44 barcode labels 44 anisotropy 44 iron oxides 44 #x#mm [003] 44 mafic volcanics 44 vellum 44 mattes 44 stamps 43 woodblocks 43 sequentially numbered 43 limonite 43 metasedimentary rocks 43 glyphs 43 tracery 43 DataSet 43 lithograph 43 intaglio 43 linocuts 43 incised 43 cels 43 watermarked 42 manganese oxide 42 roundel 42 coins minted 42 Lithograph 42 pickguard 42 siliceous 42 Italics 42 etchings 42 skarns 42 geometric pattern 42 mottling 42 gelatin silver 42 lenticular 42 resampling 42 lithographs 42 screenprints 42 semi massive sulphide 42 spinel 42 colouration 41 anomalous zones 41 assay intervals 41 Prints 41 magnifications 41 ZrO2 41 obverse 41 embossing 41 silk velvet 41 unicode 41 commemoratives 41 stippled 41 struct 41 Inscriptions 41 Textures 41 geochemical anomalies 41 kimberlitic 41 polychrome 41 SiO 2 41 electroplated 41 translucency 41 pigment ink 40 magnetic anomalies 40 orbitals 40 laser engraved 40 typeset 40 watermark 40 samples assayed 40 indents 40 gravels 40 #x# inch [002] 40 flatbed scanner 40 tire sidewall 40 pathfinder elements 40 marginalia