Guitar of the month (October): 1954 Gibson Les Paul Junior Oct 18, 2020 See full price history. Price histories for over 10,000+ guitars Search through our guitar price history database for FREE. Similar Posts You Will Enjoy Reading... Guitar of the month (December): 1939 Gibson J-35 Guitar of the month (September): 1965 Gibson Thunderbird Guitar of the month (January): 1957 Gibson ES-5 Switchmaster