There are at least two or three bands called Amphora.
1) Dutch three-person psychedelic folk band (influenced by the Incredible String Band) with Jan Dekker, a music teacher from the north of Holland; recorded Waitin' (For The Sunlight), a 7-inch 45 for the BASF label in 1971, produced by Hans van Willigenburg of later television fame.
2) Another Dutch band from Castricum, which recorded a single for the CNR label in the late 1970s.
I don't know from which of these two the track Timothey, linked to this artist entry, is.
3) The track Angel on the Dream Club 7 compilation is probably from yet another group.