Vintage brass, 1 Bugle horn and 1 Hunting horn.

The brass musical instruments in the image are likely bugles or hunting horns. These types of instruments are designed without valves or slides, with the player using their embouchure (lip and breath control) to produce a limited range of notes in the harmonic series, such as those used for military calls or hunting signals.
Function: They are primarily used for producing simple fanfares and specific calls, rather than complex melodies or a full chromatic scale like a trumpet or cornet, which have valves.horns.
The smaller one was used as a center piece and had garland and a bow on it. I was going to repurpose it but when I took the garland off some of the glue is still stuck.