The series consisted of the three different models, the B-45, the B-25, and the B-15 (the Blue Book also lists a B-20, with a run of 500 units).
Gibson manufactured the natural finish B-25-12-N through 1977, the last year of production for all B series guitars.
In 2012, Gibson Custom Shop launched the "Icon '60s" series, reissued many classic models.
Although never appeared on Gibson's official website or media presses, there is a batch of B-25 and B-24 3/4 also produced, especially for the Japan market.
It featured a mahogany body, [spruce] top, rosewood fingerboard, and natural finish.