Numbers in business names have unique rules:
Numbers spelled out (Seven Lakes Nursery) in business names are filed alphabetically.
Numbers written in digits are filed before alphabetic letters or numbers. (B4 Photographers comes before Beleau Building and Loan).
Names with numbers written in digits in the first units are filed in ascending order (lowest to highest number) before alphabetic names (229 Club, 534 Shop, First National Bank of Chicago).
Arabic numerals are filed before Roman numerals (2 Brothers Deli, 5 Cities Transit, XII Knights Inn).
Names containing Roman numerals are filed in ascending order according to their Arabic number equivalents.
Names with inclusive numbers (20-39 Singles Club) are arranged by the first digit(s) only (20).
When hyphens separate three or more numbers written as digits, remove the hyphens as you would when hyphens separate words. (1-2-3 Market would be coded as 123 / Market.)
Names with numbers appearing in other than the first position (Pier 36 Cafe) are filed alphabetically and immediately before a similar name without a number (Pier 36 Cafe comes before Pier and Port Cafe).
When indexing names with a number written in digit form that contains st, d, and th (1stMortgage Co., 2d Avenue Cinemas, 3d Street Pest Control), ignore the letter endings and consider only the digits (1, 2, 3).
When indexing names with a number (in figures or words) linked by a hyphen to a letter or word (A-1 Laundry, Fifty-Eight auto Body, 10-Minute Photo), ignore the hyphen and treat it as a single unit (10Minute, A1, FiftyEight).
When indexing names with a number plus a symbol (55+ Social Center), treat it as a single unit (55plus).