These seem to be very common but I love the deep blue color. Just thought I share a few that I have. the Bromo Seltzer are on the left and they are from Baltimore MD. and the Phillips is from Glenbrook Conn.
I've got a few of those. Very common, but pretty. I've got an odd color bromo. It's like a dark navy blue. I've got one of those corker Magnesias in cornflower too. Nice bottles Chris.
Yeah, you just can't leave them behind LOL I've got one that has two patent dates, and the year is 1873, very crude glass, think the dates were April and July but I'll have to dig it out to see exactly, then the 1873 is under the two dates. Thats the only one I've seen with 1873, dig a lot of the 1906 version. They may be junk, but like I said you just can't leave them there, I usually give them to non collectors to put in a window in their kitchen, etc, everyone likes a blue bottle, even if they don't collect.
Edit its April 23rd and July 22nd 1873 here is a pic, the lines in the front aren't cracks but imperfections in the glass, looks like a huge bubble swirl or a cold flow