This paper addresses the issue of the role of Quasi-Urteile—Quasi-Propositions—in the arts. Stemming from Ingarden's Aesthetics, the notion of Quasi-Propositions addresses the idea that artworks employ proposition-like structures even if their reference deviates—to larger or lesser degrees—from that of propositions in non-arts contexts. Here, the Peircean doctrine of Dicisigns—propositions—is introduced, with a much wider range of sign vehicle types able to instantiate propositional content, such as signs involving pictures, diagrams, gestures, etc. Taking a particular Danish controversy—that of a military "cartouche" at a Copenhagen barracks—as an analytical example, the chapter argues that filling-in is constrained by context, genre as well as aspects of the work itself, making it possible to categorize certain filling-ins as wrong, going against the potentialities of the work. The case, simultaneously, makes necessary a softening up of Ingarden's rigid distinction between fictions and non-fictions.