Framed mountain landscape drawing bearing a signature 'Peter Rost'

This item is a framed landscape drawing executed in a pastel or colored pencil medium on paper. The composition depicts a series of jagged mountain peaks rendered in soft blue, violet, and peach tones, suggestive of dawn or dusk lighting. The foreground consists of gestural, textured strokes of green, yellow, and blue, representing alpine vegetation or foothills. The work bears a signature in the lower right corner that appears to read 'Peter Rost'. This signature is consistent with the mark of the artist, though it remains unverified without physical inspection and provenance documentation. The drawing is presented under glass with a wide cream-colored mat and a simple, dark-stained rectangular frame. The overall style is impressionistic and atmospheric, likely dating from the mid-to-late 20th century. Visible condition appears stable, though there is a prominent reflection on the glass surface in the photograph and slight rippling of the paper consistent with moisture or mounting. Identification is based on visible markings and stylistic features which require professional authentication.

Based on my examination of the image provided, the item appears to be a mid-to-late 20th-century landscape drawing executed in a pastel or colored pencil medium. The work bears a signature in the lower right corner consistent with the mark attributed to 'Peter Rost'. However, I cannot verify the authorship from a photograph alone; this remains a hypothesis that would require physical inspection and provenance documentation to support. The composition exhibits an impressionistic style with soft atmospheric tones, though visible rippling of the paper and glare on the glass impede a full assessment of the surface condition. The basis for this estimate of $150 to $350 assumes the attribution to Rost is correct, as similar expressionistic mountain landscapes of this era typically occupy this price point in the secondary market. Current demand for such decorative works is stable among collectors of regional mid-century art. I cannot determine if the materials are archival or if there is light-fading without an in-person review. Professional authentication, including scientific analysis of the paper and a review of the piece out of the frame, would be necessary to establish authorship. If this work were found to be a reproduction, a student copy, or simply 'in the style of' the artist without a verifiable link, the value would likely decrease to a decorative range of $25 to $75. The presence of the signature is a positive indicator for value but does not serve as a guarantee of the work's origin.