Grouped by the category stage 2 gave each crop, and offered only the signs of that series — so the drawings on screen are always the ones this crop could be. Matching a photograph to a picture is a far easier judgement than recalling a code. Keys cover the first nine; the rest are one click, and c still types a code the catalogue does not carry.
These crops carry no recognised category, so there is no series to offer. Type the code with c, or send them back at stage 2.
