Gibson Hummingbird AG Walnut with original hard case
Condition is used, has dinks, some small dents and marks (patina), which can be seen in the pictures.

Avant-Garde: favouring or introducing new and experimental ideas and methods...

This is a Limited Edition 'Avant-Garde' Walnut burst electro-acoustic Gibson Hummingbird.
I would definitely say it is 'avant-garde', with the new experimental materials and ideas, this has seen some use (which I like to see, it means it has been enjoyed).

Sounds great, as you would expect from Gibson and plays well, with no structural issues.
Production Year 2017-18 (went on sale 2018).

Production Date September 20, 2017
Factory Bozeman, USA
Era Gibson under Henry Juszkiewicz leadership

Series - Limited Edition
Body - Walnut, Style Square Shoulder
Top Sitka spruce
Bracing Traditional Hand Scalloped X-bracing
Neck - 2-piece maple
Neck - width 1.725’’
Neckjoint - Compound Dovetail Neck-to-body
Fingerboard - Richlite
Scale - length 24.75"
Number of frets 20
Nut - Tusq
Inlay - Mother-of-pearl Dots
Binding - Multi-ply top, single-ply back
Bridge - Modern belly down, Richlite
Tuners - Mini Grover, Nickel
Pickup - Passive, LR Baggs™
Finish -  Walnut Burst
Case Gibson - Brown Hardshell
SKU - Walnut Burst, AGSSWBN8

I would prefer collection in person, to be sure you are happy with the instrument and to avoid any potential damage in transit.