Stereo analysis
AnalyzedVerdict
Inconclusive40%
The scan does not contain enough reliable detail for a firm classification.
- 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
- 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
- 1px
- Vertical drift between matched details. Lower is better; 4 px or more can indicate camera movement, scan skew, or poor alignment.
Two-masted schooners lie alongside a narrow bank, their pale hulls beneath tall masts and closely drawn rigging. Horse teams stand near the nearest vessel, while small figures occupy the bank farther back. Other sailing vessels follow the curve of the waterway; sheds, low boats, trees, and buildings on rising ground fill the distance. The confined channel and waterside path suggest a canal setting.
A large ink inscription on the reverse reads “Canada,” providing the country identification but not naming the waterway or settlement. Pencil writing along the reverse edge appears to read “Jean Doyle, july 4,” without a year. Rows of handwritten numerals occupy the upper reverse, with a much fainter line of writing above them that cannot be read securely.
The card has no visible printed title or maker’s imprint, and neither the photographer nor the date is established. The two side-by-side photographs are mounted on yellow card. Supplied dimensions are 6.75 × 3.27 inches (171.3 × 83.0 mm).
A small patch of yellow surface paper is missing at the left edge of the reverse. Pencil and ink inscriptions remain on the mount; the photographs are otherwise clean and the card sound.
- Title on card
- Canada (inscribed)
- Medium
- Stereoview
- Subject
- Occupational, Outdoor Scene, Yellow Mount
- Dimensions
- 6.75 × 3.27 in (171.3 × 83.0 mm)
- Condition
- Small patch of surface-paper loss at the left edge of the reverse. Pencil and ink inscriptions on the mount; photographs otherwise clean and the card sound.
- Provenance
- The reverse bears a pencil inscription apparently reading “Jean Doyle, july 4”; the named person’s relationship to the card is not established.
- Catalogue no.
- MSV1848
Catalogue details
Location
Second Welland Canal near Locks 3–4, below downtown St. Catharines, Ontario · St. Catharines, Ontario, Canada
Photographed subject · Street / district · 65% confidence
Reverse: "Canada," "Jean Doyle, July 4," ADO mark shared with MSV1845 ("Tug boat Welland Canal"). Front: schooners (one stern reads "…ROOKLYN") moored along a narrow towpath bank standing in water, horse teams on the towpath, a lock beyond, town buildings on the high ground. The Welland Canal Company survey of St. Catharines (Book 1, Map 11) records Locks 3 and 4 and a floating tow path on this reach. G.F. Maitland photographed this stretch c.1871 (Brock RG751), but this card carries no imprint, so the photographer is not claimed. Exact vantage unconfirmed.
Source: Card reverse + scene features + Welland Canal survey map
