The item appears to be a vintage 1979 "Irish Lover" enamel lapel, hat, or tie tack pin featuring green lettering and a red heart. 

Details

• Type: Stick pin / lapel pin / hat pin

• Design: Green enamel lettering reading "IRISH LOVER" with a small red heart inside the letter "O"

• Era: Dated 1979 (often associated with maker marks like SWID)

• Materials: Gold-tone metal with green and red enamel fill

This vintage "Irish Lover" novelty stick pin—produced by SWIB/SWID in 1979 and manufactured in Taiwan—is considered a low-value collectible novelty item. 

Estimated Market Value: $5.00 – $12.00 USD

Value Factors:

• Current Market Trends: Collectors typically purchase these pins as nostalgic, retro gifts or accessories specifically for St. Patrick's Day. 

• Historical Availability: Similar novelty enamel pieces from the SWID/SWIB 1979 collection regularly sell on platforms like the Etsy Vintage Marketplace and eBay Electronics and Collectibles for around $6 to $8 in standard used condition. Exceptional, pristine examples can occasionally fetch up to $12