This page pictures two Gibson flat top jumbo acoustic guitars, the B-45-12 and J-160E, with further description of the Gibson Hummingbird.
1968/1969 UK prices for these guitars were as follows:
|54014||Hummingbird Cherry Sunburst||220 gns|
|54015||Hummingbird N. Natural top, Cherry rim and back||230 gns|
|5423/05||J-160E Sunburst||190 gns|
|5440||B-45-12 Cherry Sunburst||180 gns|