Would be nice to have a unique Hummingbird 'topic', rather than just this thread !
Anyway, was starting to get worried about my 'bird, as is has single fretboard block markers, a (beautiful) inlay down the body back, and a 3-screw truss-rod cover.
However Bob Burns at Gibson Support assures me that it is consistant with a '74/'75 Hummingbird.
Pix on Dropbox (because limit here is 500KB, which is only a small fraction of a single photo these days !
https://www.dropbox.com/sh/12evrbcvsuhah6d/AAD2560hW6y0iiWjA9lI2g6Va?dl=0
