The publisher is explicitly stating that at that time, they had the rights to print it. It's not completely necessary to spell it out like that, so they're being extra careful.
Generally numbers (or letters) on a copyright page refer to an edition number so "12" would either mean a 12th edition or if they are 1,2 in sequence then a third edition.
A set of letters or numbers on the copyright page generally refers to the number of the printing or edition of the book.
2010.
Typically the earliest date will be the copyright date of the original work, and the latest date will be the copyright of the particular edition you have. If the notification is not completely clear, the cataloging-in-publication information should help.For example, I am looking at Kohn on Music Licensing, 4th edition. The notification is © 1992-2010. This would mean that the first edition came out in 1992, and the work is consistently being revised. However the CIP data for this physical book gives the Library of Congress classification as KF3035.K64 2000, which means this 4th edition book was first published in 2000. Going back to the original notification of © 1992-2010, I would expect that this particular copy was printed in 2010.For the purposes of a bibliography, I would give the date of this 4th edition book as 2000. For the purpose of determining copyright status, the copyright and publication dates are immaterial: it will be protected for the life of the authors plus 70 years.
It can mean that either the book was published in 1905 or that the original story was copyrighted in 1905 and published at a later date.
The letters are Roman numerals that stand for the number (hence the copyright year) 1950.
A Book prepared for use in school or colleges
No. The International Standard Book Number is a 10- or 13-digit commercial identifier. The copyright date is a 4-digit year.
Manuscript Album Edition Codex
The definitive edition of a book is the most authoritative version of it. You know when a book is the definitive edition because it is stated either on the cover or within the first couple of pages with the publication information.
A series of letters or numbers on a copyright page is usually used to indicate the edition of the book. Many publishers will use an ascending scale (34567890 would mean the book is a 3rd edition since 1 & 2 are missing). In this case "C" would also indicate a 3rd edition since A & B are gone.
The copyright of a book is the right to control its reproduction. copyrigh exists from the time the book is rendered into permanent forn (printed, typed, or hand written manuscript) and lasts for 70 years after the death of the author. (It is slightly differed in the case of a work written for rihe. The copyright date of a book can mean one of two things. It can refer to the first date of publication, especially in the case of a book written as "work-for-hire". It could also refer to the date of creation, particularly in a first edition.