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
- 8px
- The range of horizontal difference between the two views. More spread generally means more depth; 0–1 px usually indicates a monoview.
- Match
- 81%
- 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.
A stereoview of Lackawaxen, Pennsylvania, photographed and published by L. Hensel of Port Jervis, New York. The reverse identifies it as No. 730, “View down the Valley from School House Hill.” Two sepia photographs are mounted side by side on an orange card with a pink reverse.
The canal bends across the foreground toward a timber-sided aqueduct supported on masonry piers. Paths follow the banks, and fences divide the ground beyond. Scattered pitched-roof buildings stand beneath a wooded ridge. The elevated viewpoint makes the curve of the waterway and the construction of the crossing particularly clear.
The printed reverse checklist is headed “STEREOSCOPIC VIEWS OF LACKAWAXEN, PA.” A blue ink mark selects entry 730, matching the pencilled “730” in the separate number field above. Neighboring entries describe views from Prospect Rock, its footpath, and the aqueduct across the Lackawaxen, placing this card within Hensel’s numbered local series.
The exposure is undated; the March 1875 date elsewhere on the checklist belongs to a different, Port Jervis subject. A short curved dark mark is visible in the right-hand photograph, and the reverse label has small marginal paper losses outside the printing. Otherwise clean and sound.
- Title on card
- No. 730. View down the Valley from School House Hill.
- Medium
- Stereoview
- Subject
- Outdoor Scene
- Dimensions
- 7.03 × 4.53 in (178.4 × 115.1 mm)
- Condition
- Overall clean and sound. A short curved dark mark is visible over the water in the right-hand photograph. The reverse label has small marginal paper losses, clear of the printed text.
- Provenance
- The reverse imprint credits the photograph and publication to L. Hensel, Port Jervis, N. Y. No ownership history is supplied.
- Catalogue no.
- MSV1857
Catalogue details
Location
Lackawaxen village at the D&H Canal crossing of the Lackawaxen River (camera on School House Hill above; hill not yet pinpointed) · Lackawaxen Township, Pennsylvania, United States
Photographed subject · Street / district · 50% confidence
Reverse heading "STEREOSCOPIC VIEWS OF LACKAWAXEN, PA."; selected entry 730 matches pencilled No. 730. Front shows the curving canal and aqueduct. Web and Google place searches found no record locating a "School House Hill" at Lackawaxen; Google returns only School House Road in Lackawaxen Township, a different feature. Draft only.
Source: Card checklist (L. Hensel, Lackawaxen series) + scene comparison








