Deutschland-katalog 2009/2010 - Michel.

While this specific 2009/2010 edition is no longer the current version for market prices, it remains available on the secondary market for researchers or budget-conscious collectors:

Primarily German, though it uses standardized symbols and abbreviations commonly understood by international collectors. Where to Find it Michel. Deutschland-Katalog 2009/2010

Frequently listed on resale sites like AbeBooks and eBay . While this specific 2009/2010 edition is no longer