Vintage KFXD Radio Promotional Document (not authenticated)

This is a vintage promotional document or advertising flyer for KFXD radio station, featuring a bright yellow paper stock with red ink printing. The layout includes a prominent coverage map outlining parts of Idaho, Oregon, Washington, Nevada, and Utah with an irregular red perimeter line. Key details printed on the document include the station identifier 'KFXD 58', the frequency '580 kHZ', power output '5000 WATTS', and operating schedule '24 HOURS'. Additional printed text details market data, retail sales, farm data, and audience metrics, referencing survey dates from April/May 1970 through 1976. At the top right, there is handwritten annotation in black ink that reads '1X. Todd: 1/1/78 / For your Report / Studio CF'. The document exhibits minor edge wear, slight fading, and creasing consistent with vintage paper ephemera from the mid-to-late 1970s. The identification is based on the legible station logo, call letters, and textual content printed directly on the piece, though the item remains unauthenticated as an official corporate artifact.

Based on what I can see in the provided image, this vintage promotional document appears to be a KFXD radio station advertising flyer printed on bright yellow paper stock with red ink, featuring market data and a coverage map referencing mid-1970s dates, along with a handwritten annotation in black ink at the top right. I cannot verify from a photo alone the exact paper composition, printing method, or whether the handwritten annotation is contemporaneous or later added. Physical inspection would be needed to confirm these technical details. Assuming the paper ephemera dates to the 1970s as indicated by the printed textual content and style, items of this type generally appeal to collectors of local broadcast history, regional Idaho memorabilia, and mid-century advertising ephemera. Market demand for localized radio station promotional pieces is typically modest and niche. The estimated value range reflects the assumed period and condition, accounting for minor edge wear and creasing. However, this piece remains unauthenticated as an official corporate artifact, and an unauthenticated item of this type would typically sell for less. If physical examination were to reveal that this piece is a later reproduction, modern replica, or commemorative copy rather than period ephemera, the value would drop significantly, likely to nominal decorative or paper novelty levels of $10–$25. To establish greater certainty regarding authenticity and potential market value, an in-person physical examination by a paper ephemera specialist or broadcast memorabilia expert would be required, alongside a detailed review of any available provenance documentation.