Recently there was an interesting discussion in the Vintage nonsports card chat forum about a wrapper variation of the 1975 Shock Theatre test pack. Apparently the white wrapper test packs were sealed with two different ingredients stickers (black or purple). The discussion is linked below.
This tidbit is now added to checklist 11.4 and please keep sending in the obscure wrapper facts, folks!!
It turns out that Funny L'il Joke Books (Topps - 1970) comes with a wrapper variation listing the #400 Free Camera Ad.
I've updated the checklist but it didn't seem important enough to change the list number which remains at 11.4
Hopefully the card shows will be able to start up again later this year and people can start posting new finds!