The Zephyr De Luxe Regent was Epiphone’s second-from-the-top electric guitar produced from the late 1940s through the mid ’50s. The instrument went through several name changes, from Zephyr De Luxe Cutaway in 1948, to Zephyr De Luxe Regent, in 1950, to the DeLuxe Electric around 1954. The Zephyr Deluxe Regent is a wonderful example of the meticulous craftsmanship and beauty produced by Epiphone.
To my knowledge, The first time Glen is photographed with his Epiphone, is with his uncle, Dick Bills, in Albuquerque, around 1954, while with the Sandia Mountain Boys:

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Late 1958, Glen joins The Western Wranglers, who are backing up singer Jimmy Williams, at The Hitching Post in ABQ (he later takes over as frontman) and is still playing the Zephyr:

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- Glen with the Western Wranglers Jerry Smith-piano: Donny Cotton-drummer: Glen: Jimmy Baker-bass: Johnny Arvin-steel
- Western Wranglers.jpg (239.05 KiB) Viewed 17140 times
After leaving New Mexico, ending up in California, we see him with the Champs in 1960 still using it (The pickups have been changed...which is no surprise. The original Zephyr pickups were sub standard and it appears that Glen slanted the neck pickup to get a slightly hotter treble out of the upper register and Glen has added a custom leather sleeve):

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And finally with Fred Carr and the Customs

- Epi 59 Fred Carr and the Customs.jpg (62.25 KiB) Viewed 17811 times
Once Glen starts working as a studio musician, the Zephyr disappears, until after Glen is diagnosed with Alzheimer's. It becomes clear that Glen still held a fond place in his heart for this guitar.
It reappears front and center on the staircase in his Malibu home:

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And then in a poignant portrait:

- Epi Portrait.jpg (42.1 KiB) Viewed 17811 times
Finally, and rightly so, at the Country Music Hall of Fame:

- epi HOF.jpg (54.07 KiB) Viewed 17811 times