Nothing super desirable, but let's see if I can provide some information.
I'm afraid the two stock certificates are very common; they sell on
ebay for $1-2 all the time. The Oklahoma check might be interesting to a state collector, but probably wouldn't bring more than $3-5, since it has no illustrations. Scrip collectors might like the Chicago Coin Fair scrip. It no longer has any intrinsic value, but the right person might pay $10-15 for the set. That's a little outside my area of expertise.
Of most interest to me are the two SPMC banquet tickets. These are actually repurposed souvenir cards, SO-37 and SO-39, cut down and overprinted. Pictures of the original cards are below. I haven't seen these "recycled" varieties before. If you wouldn't mind,
I would very much like to get nice, flat images (both sides) that we could use on the website of the Souvenir Card Collector Society:
http://www.souvenircards.org/gallery/gallery.html. These are kind of a narrow niche collectable, but might bring $10-12 apiece.
Thanks for posting these!

