Here's the actual pic of the bottles along with other bottles in the auction. I know nothing about seltzer, blob tops or sodas other than Pepsi. Thanks again everyone.
Wou all have got me confused. To me a Seltzer bottle isn't a soda pop bottle. It is a carbonated presurised bottle of water for concocting drinks for some distilled tickle in your throat. RED M.
If the tops (which are typically marked) match the etching on the bottle, they should definitely be good. If they don't match that doesn't mean much as the tops got swapped over the years. I don't see any red flags on those two you have pictured...