Stereo analysis
AnalyzedVerdict
Monoview (identical duplicate)63%
A monoview: the same photograph printed twice, so no genuine stereoscopic depth is present.
- Depth spread
- 1px
- The range of horizontal difference between the two views. More spread generally means more depth; 0–1 px usually indicates a monoview.
- Match
- 97%
- The share of usable picture detail that can be matched between the left and right views. A higher number means a more reliable comparison.
- Vertical
- 1px
- Vertical drift between matched details. Lower is better; 4 px or more can indicate camera movement, scan skew, or poor alignment.
A river steamer fills the foreground, its rounded galleries, closely spaced railings, and rows of cabin windows recorded in considerable detail. Two tall smokestacks have crownlike tops, with a large anchor emblem suspended between them. Ropes cross the view from neighboring vessels, while an arched bridge spans the river behind.
The reverse identifies this view by a blue underline beneath No. 9, “Steamer and Bridge.” The front mount supplies the location in two printed captions: “The Mississippi River.” and “St. Louis, Missouri.” Two arched-top photographic images are mounted side by side on yellow card.
The printed checklist is headed “CITY SERIES. A.” This view falls within a consecutive group of riverfront subjects: Nos. 7–8 are “Levee and Bridge,” variants A and B, and Nos. 10–11 are “View from the Bridge,” likewise A and B. Neither the vessel nor the bridge is individually named, and no maker or date is printed. The photographs are clean and well detailed, and the mount is sound, with no significant visible damage.
- Title on card
- No. 9. Steamer and Bridge.
- Medium
- Stereoview
- Subject
- Missouri, Outdoor Scene, Yellow Mount
- Dimensions
- 6.93 × 3.46 in (175.9 × 88.0 mm)
- Condition
- Clean, well-detailed photographs on a sound mount, with no significant visible damage.
- Catalogue no.
- MSV1881
Catalogue details
Location
St. Louis levee at the Eads Bridge, Mississippi River, St. Louis, Missouri · St. Louis, Missouri, United States
Photographed subject · Exact site · 80% confidence
Front captions “The Mississippi River.” / “St. Louis, Missouri.” Reverse CITY SERIES A, No. 9 underlined, between Nos. 7–8 “Levee and Bridge” and 10–11 “View from the Bridge.” Eads Bridge (1874) was the only bridge there. Pin at the bridge on the levee; exact landing not fixed.
Source: Card captions + reverse checklist + Google Places
