AI Appraisal Estimate

This is a large-scale, wall-mounted cartographic map titled 'The Official Map of Vermont and New Hampshire', produced by The National Survey, a renowned map-making firm based in Chester, Vermont. The piece demonstrates high-quality early-to-mid 20th-century lithographic printing, featuring detailed topographical information, county boundaries, and transportation networks. The map is primarily printed in tan and cream tones with delicate line work in blue and red representing water and major roadways. It is constructed on heavy-duty paper or linen-backed stock, commonly used for schoolhouse or administrative 'pull-down' maps, and is presented here as a framed relic. Notable features include a comprehensive legend at the top and bottom margins, listing population statistics and municipal details. The map is housed in a simple dark wooden frame with protective glass; however, heavy reflections in the image indicate non-glare glass was not used. Condition-wise, the map displays significant historical character with visible horizontal creasing and ripples, likely from being rolled for many years. There is subtle foxing and yellowing along the edges consistent with age and light exposure. The map appears to date from the 1920s to 1940s based on the typography and the prominence of The National Survey branding, which was a staple of New England cartography during that era. The level of detail and official status suggest it was originally intended for use in a government office or educational institution.

This appraisal covers 'The Official Map of Vermont and New Hampshire' by The National Survey of Chester, VT. Upon visual inspection of the provided images, the map appears to be a genuine lithographic pull-down specimen from the 1930s-1940s. The branding and typography are consistent with authentic National Survey outputs of that era. The condition shows heavy rippling and horizontal creasing, common for linen-backed maps stored on rollers, and typical oxidation (yellowing) consistent with prolonged light exposure. The market for regional cartography remains stable, with high demand for large-scale New England maps among interior designers and local history enthusiasts. Comparables for framed National Survey maps of this scale typically realize between $400 and $700 depending on the specific edition and frame quality. The presence of archival glass would have increased the value, but the heavy reflections suggest standard glass, which poses a long-term risk of UV damage. Significant value resides in the map’s 'Official' designation, signaling its administrative heritage. Limitations: This evaluation is based on digital images only. I cannot definitively verify its authenticity or the absence of modern reproduction techniques (e.g., high-resolution digital scanning) without a physical inspection of the paper fibers, ink depth, and the texture of the linen backing. To fully authenticate this item and confirm the upper end of the valuation, an in-person examination of the printing method under magnification (to look for a rosette pattern versus lithographic line work) and a review of provenance or original purchase records would be required.