| http://www.w3.org/ns/prov#value | - to the mounting of a character or letter upon a base, plate or other surface, which is to be observed; and has for one of its objects the provision of a construction by which a letter maybe easily and quickly mounted in position upon the base without the necessity of any tools and which may be conveniently operated by a retail merchant or even the purchaser of the article for satisfactorily holdi
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