⮚The first issue lacks numbering. When the first issue lacks numbering (including a publishing date or a copyright date that could be used to supply a chronological designation), supply a designation following the form of numbering on subsequent issues when that is known as per RDA 2.6.2.3. (CCM:8.5.1)
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515 ## $a Numbering begins with Jahrg. 1, Heft 2 (März 1989).
⮚Inaccuracies. If a number or date that is to be recorded as part of the designation is known to be incorrect, record the incorrect form and explain the error in the Numbering Peculiarities note (515).
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515 ## $a Issues for volumes 5-6 incorrectly called v. 4-5.
⮚Premier or introductory issues. If the first issue is called "premier issue" or another term designating "first," use the term in the designation only when there is no other numerical or chronological designation that can be used.