Stereo analysis
AnalyzedVerdict
Camera moved / alignment issue70%
The pair does not align reliably enough for a trustworthy depth reading; scan skew can also contribute.
- Depth spread
- 3px
- The range of horizontal difference between the two views. More spread generally means more depth; 0–1 px usually indicates a monoview.
- Match
- 96%
- 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
- 4px
- Vertical drift between matched details. Lower is better; 4 px or more can indicate camera movement, scan skew, or poor alignment.
Several sailing vessels lie beside low waterside buildings, their masts and rigging rising against a broad, pale sky. A light-painted hull fills the right edge of each view. Behind the boats, scattered buildings and trees occupy rising ground; reflections of the masts extend into the quiet foreground water.
The reverse carries a faint but readable pencil caption, “Canal Lock No. 3.” A separate “35” appears at the upper left. No corresponding number is visible within the photographs, and there is no printed view title or reverse catalogue.
A pasted label reads “From MILLER’S / PHOTOGRAPH SALOON, / St. Catharines, C. W.” The address suggests a possible Welland Canal connection, but the caption does not name the canal, and the studio location alone cannot establish the depicted lock’s location. The label documents the card’s commercial source without securely identifying the photographer or dating the exposure.
Two side-by-side photographs on a yellow card mount, measuring 6.79 × 3.32 inches. Detail remains clear in the hulls, rigging, and buildings. The card is clean and sound overall, with no substantial damage visible.
- Title on card
- Canal Lock No. 3 (inscribed)
- Medium
- Stereoview
- Subject
- Outdoor Scene, Yellow Mount
- Dimensions
- 6.79 × 3.32 in (172.6 × 84.3 mm)
- Condition
- Clean and sound overall, with clear photographic detail and no substantial staining, tears, cracks, or image losses visible.
- Provenance
- Pasted verso source label: “From MILLER’S / PHOTOGRAPH SALOON, / St. Catharines, C. W.” This supports an association with Miller’s Photograph Saloon, St. Catharines, Canada West, but supplies no ownership history.
- Catalogue no.
- MSV1847
Catalogue details
Location
Lock 3, Second Welland Canal, St. Catharines, Ontario · St. Catharines, Ontario, Canada
Photographed subject · Street / district · 80% confidence
Reverse pencil "Canal Lock No. 3"; label "From Miller's Photograph Saloon, St. Catharines, C.W." (Millers worked 1865–70). Lock 3 of the second Welland Canal was at St. Catharines (Brock University holds a negative of it). Exact lock coordinates on the abandoned second canal still to be fixed.
Source: Reverse inscription + photographer label + Brock University
