There were some very interesting masks and costumes during the Gabriel era Genesis. Going through some pictures there does appear to a few costumes that were rarely used or seen during that period.
1. Supper’s Ready The Black Show
This head piece was used during the beginning of Supper’s Ready (Ikhnaton And Itsacon And Their Band Of Merry Men) on the Black show (Selling England By the Pound Tour) 1974.
Here are the amazing Musical Box performing a recreation of the Black Show.
2. The Waiting Room
A silhouette would appear behind the white screens near the end of ‘The Waiting Room’ during the live performance of the Lamb Lies Down on Broadway. Peter would dress as ‘death’ and dance erratically behind the screens.
3. Decorative Flower Mask
This flower mask appears next to the fox and old man mask, however it has never been featured in any other videos or pictures.
4. Moon Head
It is said that this was a promo mask for a photo shoot and was never actual used on live performances.
More information on these would be greatly appreciated.
That flower mask looks like a highly stylized version of the getup he wore while performing “I Know What I Like”. It would be interesting to see if he ever actually wore it in concert, though.
During “I know what I like” he just wore a hat and mimicked the action of pushing a lawn-mower with a bunch of straws between his teeth… I can’t see why you relate the flower mask to this…
In the center of the mask, there is part of a face (two eyes), with what looks like the hat he wore during “I Know What I Like”. Just a thought, since nobody seems to know what it could have been used for.