This seems promising for OLAC.
http://d-scholarship.pitt.edu/42973/
https://www.ncserialsconference.org/slides/2022/2022-1B.pdf
https://opencatalogingrules.org/
Open Cataloging Rules
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Daily Archives: December 22, 2022
Lincoln Logs
https://www.basicfun.com/lincoln-logs.html
Great tutorial on how to make the toys
https://www.youtube.com/playlist?list=PL7H3d1OULjpV2mlDklcuqog7MxXvTsyBL
Some plans for building
https://www.basicfun.com/assets/pdfs/instructions/knex-instructions/lincoln-logs/Lincoln-Logs-Classic-Farmhouse-00843.pdf