The containers in the Pharma section

[-JKP-]

Wladimir, I have the same feeling as you about this particular container (on the left), that the illustrator was trying to show something inside another, and it's possible that it's wood (there were many lathe-turned containers in this time period), but I was leaning toward it maybe being glass or some other transparent material (sometimes jade was carved very thin and was translucent but overall it doesn't look like jade and large pieces of jade were rare).

I have a particular interest in Bohemian glass (I have a number of antique pieces) and studied some of the glass when I was traveling through Hungary and the Slavic countries, so I looked into the history of Murano glass (which was created by both Bohemian and Italian artisans) and there was some more advanced glass in the 15th century, but not very much of it (it was rare and very expensive). Most of it was not terribly sophisticated until the Renaissance. Beads have been made since Phoenician times, but larger glass pieces, especially colored ones, tended to come later.

I did, however, find some glass pieces from the 15th century that are rock crystal. They were not usually rounded (mostly squared-off), so the possibility of the VMS container being glass is not strong, but it is possible.