Gudes pepto mangan with out the heart

[TheBombersDream]

I know these Gudes bottle are fairly common, but it is still one of my fav. Now almost all of the ones I see have the heart embossed on the bottom. However, I have one in my collection that is marked with a - or a I . Does anyone have any info?

 

[sunrunner]

never seen this one before .I have a few Gude's in the larger size ,that's a cool little bottle.