They were made in the same factory as Ibanez guitars inb the 1970's, which means they were very good quality instruments.
Re: Yamaha G-150A. I own a Yamaha steel string folk guitar and have owned a Yamaha classical guitar in the past. They are very good instruments and far better than their prices indicate. I know many acoustic players who have very expensive guitars and prefer playing their Yamahas.
mark
Aug 17, 2011 Rating
Re; Penco guitar- by: Mark 47
I remember seeing and playing several PENCO guitars in the late 1970's-1980's. I believe they were made in Japan. The models I played seemed well made and I know they were about mid range in price. They made mostly copies of other companies guitars, good materials and build quality.
I think you should find more about the company if you search online for PENCO guitars.