Microfon

Argentinian label, owned by [l=Microfon Argentina S.R.L.] (later as [l=Microfon Argentina S.A.])
Bought by [l=Sony Music Entertainment Inc.] circa 1996, and became a sub-label of [l=Sony Music Entertainment (Argentina) S.A.] Microfon is now a trademark of Sony Music Entertainment (Argentina) S.A. (nowadays [l=Sony Music Entertainment Argentina S.A.])

Approximate dates for label designs (only applies for Argentine releases)

(unknown) to early '65: [url=https://img.discogs.com/WHVjoOKnKvtjBUiWBtvIc7MArLw=/fit-in/600x600/filters:strip_icc():format(jpeg):mode_rgb():quality(90)/discogs-images/R-6994864-1431449746-8936.webp.jpg]"Microfon" spread out on the top over red label[/url]
'65 to '71: [url=https://img.discogs.com/OEi3tvJos_LutqLcw11jxx7A_aE=/fit-in/300x300/filters:strip_icc():format(jpeg):mode_rgb():quality(40)/discogs-images/R-7959937-1462793543-6733.webp.jpg]Triangle encasing an M & "Microfon", red label[/url]
'71 to '72: [url=https://img.discogs.com/zP7u1AGyX8OZfPFgIanpwwbZymw=/fit-in/600x600/filters:strip_icc():format(jpeg):mode_rgb():quality(90)/discogs-images/R-3058803-1397295330-9673.webp.jpg]Stamped, stylized M, yellow / orange label[/url]
'66 to '72: [url=https://img.discogs.com/ldHDDbbsxDpyJQobEiuIjO2c-JU=/fit-in/300x300/filters:strip_icc():format(jpeg):mode_rgb():quality(40)/discogs-images/R-8517192-1463221026-8860.webp.jpg]Stamped, stylized M, yellow / orange label - Used haphazardly for 33' singles[/url]
'72 to '74: [url=https://img.discogs.com/DoFv3sgI7AaDUD7XYXGebWa0igM=/fit-in/600x602/filters:strip_icc():format(jpeg):mode_rgb():quality(90)/discogs-images/R-2182688-1465164458-6698.webp.jpg]Stamped M, composed of triangles, & "Microfon", light yellow label[/url]
'74 to '78: [url=https://img.discogs.com/RmrD7Odr6-vadcHxfwuuztuAZ0Y=/fit-in/600x602/filters:strip_icc():format(jpeg):mode_rgb():quality(90)/discogs-images/R-7998086-1453815452-8070.webp.jpg]Stamped M & "Microfon" in center left, printed Tree over South America [/url]
'79 to '80: [url=https://img.discogs.com/8mp5prI2AYeDAl-GjxsYoNT0QrQ=/fit-in/600x581/filters:strip_icc():format(jpeg):mode_rgb():quality(90)/discogs-images/R-7290281-1462382483-4734.webp.jpg]Enclircled M & "Microfon", over yellow label[/url]
'81 to '85: [url=https://img.discogs.com/pCGAE8Pf2ZuDYZYPwK6jBSKC_c0=/fit-in/600x540/filters:strip_icc():format(jpeg):mode_rgb():quality(90)/discogs-images/R-8477874-1462389223-9871.webp.jpg]White M & "Microfon", printed green label with starred skyl[/url]
'85 to '89: [url=https://img.discogs.com/5zBEaU2SIR4XJD8GWg-SYItw4fE=/fit-in/600x539/filters:strip_icc():format(jpeg):mode_rgb():quality(90)/discogs-images/R-8393619-1460751586-3356.webp.jpg]Curved white M & "Microfon" on left, printed city skyline[/url]

From 1990 onwards Microfon switched to CDs.