The Samuel Music company of Effingham, Illinois (founded 1946) decided to launch its own brand of guitars, Vester in the late 1980s.
Timeline
1987 – 1988 Vester used imported instruments from Young Chang, South Korea.
From 1988 imported from Saehan Guitar Technology, a subdivision of Zaozhuang Saehan Music Co., Ltd in South Korea (now known as Sunghan Music).
The guitars were imported into the United States by Midco Music (now Musicorp).
[Source: wikipedia.org/Vester_Guitars ]
Facebook expert site with date info
Image below courtesy of Ben van Dyk email 7/4/2013
see Vestax
Vester guitars were manufactured by a number of builders in Korea; for example my Vester, serial number E735410, was built by Young Chang in 1987, (or perhaps 1988), as indicated by the E and 7. Please only post correct information. You have a responsibility.
Thank you Felix – have updated from later info at wikipedia. Thank you for bringing it to my attention. Regards Paul