Military cap badge, attributed to the Royal Corps of Signals (not authenticated)

This is a cast metal military cap badge featuring a central spread-winged eagle sitting atop a wreath of foliage. Above the eagle's head is a raised circular globe or disc displaying horizontal lines and a distinct three-bladed propeller or similar insignia symbol. Flanking the eagle are two curved ribbon scrolls with raised lettering; the left scroll bears the text reading 'SEMPER', and the right scroll bears the text reading 'VIGILANS'. The metal has a dull, darkened brass or bronze tone with areas of oxidation, wear, and surface patina showing lighter metal beneath high points. The craftsmanship exhibits detailed feather texturing on the eagle and relief lettering on the scrolls. There is no maker's mark visible from this frontal angle. The style is consistent with mid-20th-century military insignia, and the identification rests on the visual similarity to recognized designs associated with the British Army's Royal Corps of Signals, though this specific example remains unauthenticated.

Based on what I can see in the provided image, this cast metal military cap badge features the visual elements associated with the Royal Corps of Signals, specifically the spread-winged eagle, globe with propeller, wreath, and the ribbon scrolls inscribed with 'SEMPER VIGILANS'. The piece displays a dull bronze tone with surface patina and wear on the high points. However, I cannot verify from a photo alone whether the metal composition, casting quality, and back fixings correspond to a period-correct issue, as these details would need physical inspection to confirm. Because this is treated as a working hypothesis and remains unauthenticated, the estimated value range of $50 to $150 assumes the attribution is correct and that the piece is a vintage example. Demand for military insignia of this type is generally steady among collectors, though prices fluctuate based on scarcity and exact manufacturing details. To achieve a higher end of valuation or to establish greater certainty, an in-person examination by a militaria specialist, along with physical inspection of the reverse lugs and hardware, would be necessary. If physical inspection reveals this piece to be a modern reproduction, replica, copy, or produced merely 'in the style of' the historic insignia, the market value would likely drop significantly to a nominal range of $10 to $25.