H. Oliver ~ NONE ~ 12 Gauge

An H. Oliver SxS shotgun likely refers to a high-quality, potentially custom-made, side-by-side (SxS) double-barrel shotgun, possibly from a lesser-known maker or a custom shop, as "Oliver" isn't a major brand like Parker or A.H. Fox, but points to fine European craftsmanship, often found on collector sites specializing in vintage or bespoke firearms, emphasizing luxury features like deep engraving, fine wood, and classic action styles.