Topic: Heavy Glass Vase marked Foreign

[adam20]

Very thick walled - 5" high and with scando looking shape to it - base conical and round top with polished rim - marked FOREIGN to base - does this mean its polish and what age is it - cost 50p so if its worthless no loss LOL

Thanks Adam

[chopin-liszt]

It looks seriously like the bottom part of a small dessicator.

This is a bit of lab equipment - dessicating (hygroscopic) crystals are placed in the bottom section and a metal grid sits on the shelf edges above them. Then chemicals which are sensitive to atmospheric moisture can be stored, sitting on the grid. It should have a dome-shaped top, with flanged edges, which fits onto the flat flanges of the bottom part.

A silicon grease is applied to the flanges to create a seal. Quite often there is a neck-section on the top of the dome, into which a rubber bung with a hole in it can be put. If a glass tube is put through the bung, a rubber tube attached to that can then be attached to a vacuum pump and the whole thing evacuated of air.

[adam20]

Thanks

Wondered why the rim is matt ground seems to make sense now

Ah well

[wolkenreb]

Did that just come from the top of your head Sue? Wow, impressive!

[chopin-liszt]

No, Nancy - I used to work in a biochemical pharmacology research lab. I used to used them. :smg: