#1. Very common but neat wording. I have one in my collection of interesting embossings.
#2. & #3 Reproduction - Worthless in my opinion
#4. Newer Bromo, 1950 - 60ish, Minimal collector interest, worth a few cents for the color, maybe.
I strongly dislike ANY fake or reproduction or facsimile or commerative type bottle. I believe it detracts from authentic OLD bottles and flasks. Collect what you like but be aware of what you are getting.
MPB you may be a new collector and collect what ever you like. botlguy is correct about the repro's. Just learn which are the real thing. As far as the Milk Of Mag's I have dug hundreds and keep many. I clean them and sell them in my antique shop for 3 buck all day long.
gac
I did know that the two 'newer' bottle where...well, newer being that they are both stamped with their age (1973, 1976). They may not be old, but I would think that they would still have some value to collectors of some sort. I payed $5.00 for all 4 so I am not doing to bad, in my opinion. Thanks for the info!