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The references provided by an anonymous editor to replace the {{fact}} do not in fact support the tagged assertion. Also, collectorsquest.com does not seem to satisfy the sourcing guidelines. —SlamDiego←T 16:22, 21 September 2009 (UTC)
The second half of the above is nothing but a shameless advertisement for Vaillentcourt products. It should be removed. There is no educational value to what has been written here.. and the historical details offered on Chalkware are very limited. — Preceding unsigned comment added by 92.13.134.251 (talk) 15:09, 8 June 2017 (UTC)