Stereo analysis
AnalyzedVerdict
Genuine stereo pair80%
The two photographs contain the viewpoint difference needed to produce genuine depth.
- Depth spread
- 2px
- The range of horizontal difference between the two views. More spread generally means more depth; 0–1 px usually indicates a monoview.
- Match
- 82%
- 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 small steam tug lies broadside in still water, with a larger vessel apparently on the stocks behind it. Several figures stand aboard the larger boat. Sawn boards and squared timbers crowd the foreground, while a steep track rises beyond the boats between bare trees and buildings on the bank.
The otherwise unprinted reverse carries the faint but readable pencil caption, “Tug boat Welland Canal.” This identifies the waterway as the Welland Canal in Ontario, but does not name the particular yard or landing. The vessels, photographer and date remain unidentified.
The paired photographs are mounted on yellow card, measuring 6.74 × 3.26 inches overall. The image is pale, though the boats, figures and timber remain readable. A circular stain is visible on the reverse; otherwise sound.
- Title on card
- Tug boat Welland Canal (inscribed)
- Medium
- Stereoview
- Subject
- Lumber, Occupational, Outdoor Scene, Yellow Mount
- Dimensions
- 6.74 × 3.26 in (171.2 × 82.8 mm)
- Condition
- Pale image with readable detail. A circular stain is visible on the reverse; otherwise sound.
- Catalogue no.
- MSV1845
Catalogue details
Location
Shipyard on the old Welland Canal (Twelve Mile Creek) below downtown St. Catharines, Ontario · St. Catharines, Ontario, Canada
Photographed subject · Street / district · 55% confidence
Reverse pencil: "Tug boat Welland Canal." Front: steam tug moored beside a larger hull on building stocks, lumber stacks, road climbing a steep bank to houses above — a shipyard, not an open canal reach. The setting matches the Shickluna Shipyard on Twelve Mile Creek below downtown St. Catharines (1863 photo, Wikipedia/St. Catharines Museum; Brock University Shickluna collection notes tugs built on stocks there). Other St. Catharines yards (Shickluna #2, Chestnut St.) are possible. A web claim that the tug is the "Beaver," 1894, has no traceable source and is not used.
Source: Card reverse + scene comparison with archive photographs
