The nib depicted is likely genuine but does not regularly belong in the 246: it looks like a Meisterstück nib from the 1930s, recognisable by the small logo hallmark under the main logo. On a regular 246 nib, 'MONTBLANC', the logo, '14C', again 'MONTBLANC' and '585' should be stamped. An exception are France models: since France only recognises gold from 18 carat, writing instruments sold there were delivered with 18-carat nibs, partly by drawing on old stock of Meisterstück nibs. Thus the nib can also be correct in a 246 destined for France.