In looking for something this morning, I found a video on Alencon
Lace on this site. This video is in French, however the photography is very detailed. It shows how Alencon was made, from the pricking to cutting it off of the pattern, removing threads and smoothing the lace. The site is in English. See: http://visitnormandy.wordpress.com/2010/11/16/alencon-lace/