| Category: | Metals |
| Full company name: | ... |
| Company location: | ... |
| Company dates: | ... |
| Successor Company: | ... |
| Dates of use: | ... |
| Description: | Uppercase letter K inside a double-lined circle with the text Knickerbocker MFG. Co. Quadruple Plate written around it in uppercase letters. |
| Material: | ... |
| Application: | ... |
| Color: | ... |
| Notes: | ... |
| Keywords: |
circle K knickerbocker quadruple plate |
| Contributor: | ... |
About Marks & Library
WorthPoint MarksTM and the WorthPoint Digital LibraryTM are two new products from the leading online resource for collectors – WorthPoint.com. |
Marks provides the internet’s largest database of searchable hallmarks and makers marks. The database currently includes marks for Metals (including silver, gold, platinum, and pewter), Ceramics, Glass, Gun Proofs, Dolls, and more. WorthPoint will continue to add to both the depth and the breadth of the marks database to ensure that it remains a key resource to collectors. |
The Digital Library provides a growing Antiques & Collectibles library of books from leading publishers. Currently with hundreds of titles, WorthPoint will continue to add to the number of publications and publishers whose works are available in the library. Access to every book in the library -- with the ability to highlight sections, add notes, and bookmark sections for future reference -- is included for a single subscription fee. Marks and The Digital Library continue to expand WorthPoint’s commitment to help collectors turn information into knowledge. |