this is a Shure Prologue series microphone.
Specifically, it is a model from the 14L line it is a 14L given the presence of the lockable on/off switch and the professional-style pouch).
Brand & Model Details
Shure (An American company founded in Chicago).
Series: Prologue (Introduced as an entry-level, budget-friendly alternative to their legendary SM series).
Type: Dynamic, Unidirectional (Cardioid) Microphone.
Year of Manufacture: These were primarily produced from the mid-1980s through the late 1990s
Country of Manufacture: Japan
During this era, Shure outsourced the production of the Prologue line to Japanese factories.
The Prologue series is considered a "vintage budget" microphone. While they are built with Shure's typical durability, they do not command the high prices of the SM58 or SM57.
Collectors and hobbyists often seek these for their "vintage character" or as reliable backup mics. Having the original Shure-branded leatherette pouch and the mic clip helps push the value toward the higher end of the range.
Vintage Shure Prologue Dynamic Microphone (Made in Japan). Excellent condition. Includes original Shure protective pouch, mic clip, and foam windscreen. Great for home recording, karaoke, or as a rugged backup vocal mic.