What is vesicular microfilm?

Feb 11, 2025 ... Microfilm is a 35 mm film with microscopic photographs of pages of books, newspapers, documents, etc., to allow compact storage. Character of books used for recording; standards for microfilm, etc. All books used in the clerk's office for the permanent recordation of deeds, wills and ... Jul 18, 2016 ... Microfilm has been with us for many years. For decades, it was used as a preservation tool for recorded history. Jul 29, 2024 ... Microfilm was used to send information during the 1870 Siege of Paris. · Even before the Library of Congress started a stateside microfilming ... A survey was undertaken on the current use of computer-output microfilm (COM) at the Defense Construction Supply Center (DCSC). The COM process... Dec 5, 2023 ... This technology was even used to send documents via tiny microfilm rolls on carrier pigeons during wars at the time. By the early 20th century, ... ... microfilm may be substituted for the method of filing ... If this method of recording instruments on microfilm or filing documents on microfilm is used ... Convenience film-Microfilm copies of records created only for convenience of use and considered nonrecords under the Government Code, Section 441.031(5). Like diazo film, vesicular film is used as a duplicate “user” copy. The film is exposed by ultraviolet light, and it is developed by heat, which softens the ... ... microfilm used for long-term records: (1) START. A target labeled START to be filmed at the beginning of the roll. Letters must be large enough to be ...