bar-code number truncated by too-small field: 0711250025000919
break-down of ''0-71125-00250-00919'':
''0'' identifies: english language
''71125'' - id. no. of main distributor
''00250'' - cover price in (merkin) cents
''00919'' - book core cat# (n.b. excludes isbn checksum digit, which is additional to the core cat#)
n.b. in this particular merkin eccentricity, usage or abusage of the system, in which the main mmpb distributor - or news wholesaler - is identified rather than the publisher, only the final element is unique to the particular book (and then, only within the specific distributor or wholesaler's catalogue - and at around that specific time).
(an equivalent merkin eccentricity, usage or abusage of the system was also committed for around the same time by some other publishers, save that they used their isbn system publisher code, rather than their main, primary or sole news wholesaler's (possibly not strictly isbn system?) code.)
- later on, as the news wholesalers domination of the mass-market paperback continued to decline, this weird way declined with it, falling into line with usage elsewhere in the english language world of publishing and distribution: 0- (or 1-) identifying the english language; the next element identifying the publisher; the next element the book's core cat# followed by the isbn10 checksum digit (after the introduction of the isbn13, the whole is prefixed with 978-, which changes this final checksum digit); and then, in a stroke of genius, the separate block is used to encode the cover price in merkin cents in five digits (in north america);
- as it was used for the cover price in yuk-of-gb-&-nionion pence in the uk and commonwealth.
- variations may exist for xxxxian & kiwiiiian publishers; there doesn't seem to be one for canadadian publishers, possibly because the history of the canadian publishing industry has largely - though not entirely - consisted of yuk & merkin h/cvr publishers buying up initially independent local publishers, or establishing local subsidiaries of their own, and treating them as minor adjuncts of the much larger home publishing houses:
- merkin mass-market paperback publishers, for example, habitually add a canadian cover price to the colour-printed card covers - but do not give a separate canadadian-flagged bar-code block incorporating this numerically different cover price as a scannable alternative to a stars'n'stripes-flagged merkin block:
- either canadadian bookshop tills are set up with the local cover prices automagically totted up when the merkin bar-code is read - or maybe canadadian bookshop clerks are smarter than their merkin counterparts, and read (and key in) the right cover prices... - ? (this comment is from another edition of this book)
if the carcass (or 'book') of the copy held was printed in canada, it'd be appreciated if you'd post a comment giving the wording in the printing history & number line, and the cover price - or prices. ppint. (this comment is from another edition of this book)