For those of you who do not see the Arachne posts, Jean Leader mentioned that a couple of years ago she put together a booklet (42 pages) about identifying hand-made lace that was used for a series of workshops for textile curators organized by the Dress and Textile Specialists in partnership with the V&A.  This booklet includes useful information about the conservation, display, and storage of lace.  It is online at

http://www.dressandtextilespecialists.org.uk/wp-content/uploads/2015/04/Identifying-Handmade-lace.pdf

Thanks to Jean for posting this.  And yes, I used a good deal of her text description here.