![UH6203, Letterlocking Categories and Formats Chart, 2023.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1739595258774-EOHQS2Y7836L1DE1I60R/17_UH6203_Chart_Categories_formats_2023.png)
UH6203, Letterlocking Categories and Formats Chart, 2023.
![UH6069, Letterlocking Categories and Formats Chart, 2021.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1739595192787-5Y1LA6EPBOU17IA5CKN7/16_2021.png)
UH6069, Letterlocking Categories and Formats Chart, 2021.
![Categorization of legal and accounting archival collection, Fondo Veneto II, Vatican Apostolic Archives, 2000–2001. Letterlocking examples found in the archive circled in magenta.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613877216307-WXS5L14SQ83Z9EZOS8R4/00_Docuement_security_categories_FVII_2000.png)
Categorization of legal and accounting archival collection, Fondo Veneto II, Vatican Apostolic Archives, 2000–2001. Letterlocking examples found in the archive circled in magenta.
![Letterlocking Categories, 2014.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613877148605-FQ471LH3Z28TFZQGDNFX/01_2014_formatcategories.jpg)
Letterlocking Categories, 2014.
![Letterlocking Categories Chart, June 2015.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774926265-XZS9RNCCWWELJ8CB89X9/02_June_2015.jpg)
Letterlocking Categories Chart, June 2015.
Letterlocking Categories Chart, August 2016.
![Letterlocking Categories Chart, August 2017.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774788677-YUAAZN7MKL9JPZNHF3Z4/04_Aug_2017a.png)
Letterlocking Categories Chart, August 2017.
![Letterlocking Categories Chart, August 2017.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774749258-FGYUBA7QCTHS9GLB6TP6/05_Aug_2017b.png)
Letterlocking Categories Chart, August 2017.
![Letterlocking Categories Chart, August 2017.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774711517-5YL5JFRPZB4BZVAEMAEW/06_Aug_2017c.png)
Letterlocking Categories Chart, August 2017.
![Letterlocking Categories Chart, August 2017.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774633991-OA1E6UIHWUQ3X14UHFA9/07_Aug_2017d.png)
Letterlocking Categories Chart, August 2017.
![Letterlocking Categories Chart, October 2017.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774566706-73F59QEKE5LVVTMMJ0B9/08_October+2017_table.jpg)
Letterlocking Categories Chart, October 2017.
Letterlocking Categories Chart, October 2017.
![Letterlocking Categories Chart, November 2017.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774346726-MRTWRXNTXB6TKHHNCDG3/10_Nov_2017.jpg)
Letterlocking Categories Chart, November 2017.
![Letterlocking Categories Chart, December 2017.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774205704-BEUPVSGUS1IPFXJRVZOV/11_Dec_2017.png)
Letterlocking Categories Chart, December 2017.
![Letterlocking Categories Chart, January 2018.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774159415-50R0VAEJU9AC24U7B6Q4/12_Jan2018.png)
Letterlocking Categories Chart, January 2018.
![Letterlocking Categories Chart, January 2018.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774087504-GZIDLEW1OFB6YL0M8OY3/13_January2018a.png)
Letterlocking Categories Chart, January 2018.
![Letterlocking Categories and Formats Chart, 2018.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774044943-I5IGVGVKPYDY7FDLYGBL/14_2018.png)
Letterlocking Categories and Formats Chart, 2018.
![Letterlocking Categories and Formats Chart, 2019.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613773994127-CAMD4JZXGMW213RMVPSK/15_Cats_Aug_2019.png)
Letterlocking Categories and Formats Chart, 2019.
![UH6203, Letterlocking Categories and Formats Chart, 2023.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1739595258774-EOHQS2Y7836L1DE1I60R/17_UH6203_Chart_Categories_formats_2023.png)
![UH6069, Letterlocking Categories and Formats Chart, 2021.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1739595192787-5Y1LA6EPBOU17IA5CKN7/16_2021.png)
![Categorization of legal and accounting archival collection, Fondo Veneto II, Vatican Apostolic Archives, 2000–2001. Letterlocking examples found in the archive circled in magenta.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613877216307-WXS5L14SQ83Z9EZOS8R4/00_Docuement_security_categories_FVII_2000.png)
![Letterlocking Categories, 2014.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613877148605-FQ471LH3Z28TFZQGDNFX/01_2014_formatcategories.jpg)
![Letterlocking Categories Chart, June 2015.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774926265-XZS9RNCCWWELJ8CB89X9/02_June_2015.jpg)
![Letterlocking Categories Chart, August 2017.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774788677-YUAAZN7MKL9JPZNHF3Z4/04_Aug_2017a.png)
![Letterlocking Categories Chart, August 2017.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774749258-FGYUBA7QCTHS9GLB6TP6/05_Aug_2017b.png)
![Letterlocking Categories Chart, August 2017.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774711517-5YL5JFRPZB4BZVAEMAEW/06_Aug_2017c.png)
![Letterlocking Categories Chart, August 2017.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774633991-OA1E6UIHWUQ3X14UHFA9/07_Aug_2017d.png)
![Letterlocking Categories Chart, October 2017.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774566706-73F59QEKE5LVVTMMJ0B9/08_October+2017_table.jpg)
![Letterlocking Categories Chart, November 2017.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774346726-MRTWRXNTXB6TKHHNCDG3/10_Nov_2017.jpg)
![Letterlocking Categories Chart, December 2017.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774205704-BEUPVSGUS1IPFXJRVZOV/11_Dec_2017.png)
![Letterlocking Categories Chart, January 2018.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774159415-50R0VAEJU9AC24U7B6Q4/12_Jan2018.png)
![Letterlocking Categories Chart, January 2018.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774087504-GZIDLEW1OFB6YL0M8OY3/13_January2018a.png)
![Letterlocking Categories and Formats Chart, 2018.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613774044943-I5IGVGVKPYDY7FDLYGBL/14_2018.png)
![Letterlocking Categories and Formats Chart, 2019.](https://images.squarespace-cdn.com/content/v1/55ac3d89e4b07d0961f93c14/1613773994127-CAMD4JZXGMW213RMVPSK/15_Cats_Aug_2019.png)