This is the 10951st most frequent Russian word.
выставлен
"Выставлен" means "exhibited," "displayed," or "put up."
In this sentence, 'выставлен' derives from 'выставить' (to exhibit) and means 'is exhibited', indicating the presentation of an item.
На этом аукционе выставлен редкий антиквариат.
A rare antique is exhibited at this auction.
Here, 'выставлен' comes from an official context, meaning 'issued' with reference to the preparation of a document for payment.
Счет выставлен на оплату до конца месяца.
The invoice has been issued for payment by the end of the month.
In this usage, 'выставлен' refers to an art item being shown or displayed, rooted in 'выставить' as well.