The teapot may be the most valuable - many of the soldered wares were produced for hotels, restaraunts, railways etc. It isn't so much the fact that it is soldered silver that gives it much value it is the assocation with history. I once sold an individual creamer from a hotel for $78.00. Anyhow the place it was produced for should be listed on the bottom if there is one.
The glassware doesn't look like a Zanesville piece but then i'm no expert. I'm assuming there are no seam lines since you are thinking it is a blown piece or maybe it's a pattern molded piece. Does it have a pontil scar mark? Are those initials or a monogram on the teapot?