Space Age Retrofit Plate with 2 Horns?

I remember a while back I saw a Post about a Space Age Retrofit Plate with 2 Horns. Unfortunately I forgot the Model.

Does anyone know which Model I’m talking about or have a Picture of one of these?

Fairly certain you’re talking about & thinking of the AV-35, probably the rarest Space Age Electronics device currently known to exist: as you said it has two horn grilles side-by-side, above which is a pointed lens marked “FIRE” on both sides (like Simplex’s 2903 & 2904 serieses). This specific post on this other topic has the only known in-the-field photos of the AV-35: does that look like the device you speak of?

Yes! That’s the one! Thanks for the help!