The containers in the VMS small-plants section look like they might be constructed from a variety of materials, possibly even leather for some of the tube-like ones, and glass for a couple of the fancy ones.
None of them look like they have holes. They have tines, which sit on top of the underlying medium and hold the parts together, but not holes. The only one that might be interpreted as having "holes" (dots") is the one that looks like it is made of glass, which would not be used for censers in the Middle Ages.
In other words, I am saying that the drawings in the VMS are not constructed like censors. They don't have holes for the air to get in, and not very many of them look like they might be made entirely of metal. I have posted quite a few images of censers (possibly in other threads) because there are some similar shapes, but in terms of construction, it seems less likely that they are censers. The VMS containers look more like storage and usage containers than like containers used for burning. A few look a bit like candelabras (although it's not really a close parallel), but that is different from a censer in that the flame is outside the container, not within it like a censer.
None of them look like they have holes. They have tines, which sit on top of the underlying medium and hold the parts together, but not holes. The only one that might be interpreted as having "holes" (dots") is the one that looks like it is made of glass, which would not be used for censers in the Middle Ages.
In other words, I am saying that the drawings in the VMS are not constructed like censors. They don't have holes for the air to get in, and not very many of them look like they might be made entirely of metal. I have posted quite a few images of censers (possibly in other threads) because there are some similar shapes, but in terms of construction, it seems less likely that they are censers. The VMS containers look more like storage and usage containers than like containers used for burning. A few look a bit like candelabras (although it's not really a close parallel), but that is different from a censer in that the flame is outside the container, not within it like a censer.