I bought a rare piece of R.J Horner furniture at an estate sale yesterday.The bottom drawer would not slide out and the back feet needed some work. I had it on its back on some saw horses to begin repairs and was working on getting the drawers of the dresser out. When I removed the top drawer I found this jar and got a little bit of a shocking surprise - 
Why could it not have been a bundle of 100 bills instead !!
The name on that jar is a local company that has been out of biz for quite some time.
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Being a retired dental professional myself..I had mixed feelings in seeing that pic of dentures in water..
Would just assume from what you've related about the age of things there..that the previous owner of those dentures had passed on(?)
We usually tell patients that if they're going to 'store their dentures' for any length of time (usually over 24 hours) that they do so submerged in water (hence the jar w/water and dentures). Reason for that is because the plastic..methyl methacrylate (common name Plexiglas) is hydrophilic (loves water/moisture) and tends to warp/deform if left out of a humid environment for any extended length of time. I'm guessing that set was a 'spare' or old set of the person who wore them (?)
Dentures usually need replacing..or 'relining' every few years or so (for some folks more than others). They are 'static' prostheses..meaning that they retain the shape and fit from when they are originally made. But the gums and tissues of the mouth are dynamic..and change over time..just like most tissues and parts of our bodies change..over time.
Can't tell that I made dentures for over 40 years can you? LOL
Cheers..
Ichi
