The etchings reference motifs found in both J.& L. Lobmeyr's archive and at the Geymüllerschlössel castle, in which the museum is housed.
Placed upside-down on the table one inside another, any two engraved patterns will combine to form a new pattern.
Delicate gold lines on each glass suggest the correct alignment. The bigger glass protects the smaller one like a crystal dome used to cover a still life composition.
"The design highlights the pleasure of diversity within a set of objects while revisiting the rules of table setting," said Formafantasma.
The pieces were originally created for a site-specific installation called The Stranger Within for the Dining Room of Geymüllerschlössel.
They will be shown at the Rossana Orlandi-curated Bagatti Valsecchi exhibition, Via Gesù 5, in Milan from 8 to 13 April.
Sign up for a daily roundup
of all our stories