Medical equipment is a good potential for Gold.
That Atomic Absorption Spectrophotometer looks to have a round slab of metal with pipe connections to it. Thats the sort of part that has been pointed out to me as either being heavy Gold plated or just plain Gold.
There was a heating block setup for DNA
https://pbs.twimg.com/media/DtgFt7IXgAYVtLK.jpg
Biometra TAdvanced S Thermal Cycler with Gold Plated Silver Block
https://corelifesciences.com/tadvanc...-cycler-1.html
https://encrypted-tbn0.gstatic.com/i...SuQ557wZR7Qvz2
When I first figured this out a few years ago. The PTC machines were starting to sell second hand thru auctions.
Might get one for $50-$150. Original price.. hmmmmm. $3000-$8000. Before gold went 'High' circa year 2000+2
Studious investigation into manuals would show which units were solid Gold blocks & which were Gold plated solid Silver.
The last time I looked at auctions, a lot were missing the blocks.
This is the other 'Holy grail'
https://encrypted-tbn0.gstatic.com/i...NKS4hoa1sZqKxk
"So what?" You say.
That Stainless Steel looking shot glass is made from 100% platinum...