Stereo analysis
AnalyzedVerdict
Genuine stereo pair92%
The two photographs contain the viewpoint difference needed to produce genuine depth.
- 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
- 100%
- 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
- 2px
- Vertical drift between matched details. Lower is better; 4 px or more can indicate camera movement, scan skew, or poor alignment.
Two side-by-side views show a small rustic lodge at the foot of a tall, fractured rock face. Its steep roof, scalloped gable trim and diamond-patterned windows contrast with the irregular cliff above. A fence assembled from branches crosses the foreground, while shrubs partly screen the building and cover the slope behind it. No people are visible.
The lower mount identifies the scene as “Porter’s Lodge, Glen Eyrie” and numbers it 109 in the “Manitou Series.” The side imprints read “Collier’s Rocky Mountain Scenery” and “Published at Central City, Colorado.” The photographs are mounted on yellow card with rounded corners. The card is undated, and no individual photographer is named.
A blue-green printed label on the reverse repeats “No. 109” and presents Manitou as a destination for “tourists and seekers after health,” describing its mineral springs, access by the Rio Grande Railway and the surrounding rock formations. Its final sentence identifies the building’s function and position: “The Porter’s Lodge is at the only entrance to Glen Eyrie.” These statements belong to the publisher’s accompanying account; the photographic process is not established from the scans.
- Title on card
- No. 109. Porter’s Lodge, Glen Eyrie.
- Medium
- Stereoview
- Subject
- Colorado, Outdoor Scene, Yellow Mount
- Dimensions
- 7.01 × 3.97 in (177.9 × 100.8 mm)
- Condition
- Mount edges and rounded corners are rubbed, with small chips and exposed pale card along the perimeter. The photographs show warm toning, scattered spots and surface marks, particularly in the pale sky areas. Irregular localized marks interrupt the rock face in the left image. The reverse label has uneven discoloration, scattered spotting, light scuffing and a diagonal dark line near the lower right. Architectural and rock detail remains clear, and the printed captions and reverse text are readable.
- Provenance
- Publication imprint on the front: “Collier’s Rocky Mountain Scenery”; “Published at Central City, Colorado.” No ownership history is supplied or recorded in the visible inscriptions.
- Catalogue no.
- MSV1741
Catalogue details
Location
Porter's Lodge (gatehouse), Glen Eyrie · Colorado Springs, Colorado, US
Photographed subject · Exact site · 80% confidence
The NRHP nomination and History Colorado confirm a gatekeeper's house among the surviving estate buildings at 3820 N. 30th St., Queen's Canyon. The gatehouse's exact footprint within the estate entrance is not fixed by these sources, so this draft stays unapproved pending a site match.
Source: Glen Eyrie National Register nomination (5EP.189), History Colorado
