according to a Feb 1966 article, Constantine had
been singing for 3 years, and has 2 recordings
Bob Constantine Live (no details found - ANYONE ?????)
and
A Z Records xxxx                   LP 196?
Rob Constantine Sings
A1 Cannons Of War Written By – Robb McKay 2:50
A2 Boot Of Blue Written By – Eric Anderson* 2:57
A3 Universal Soldier Written By – Buffy Sainte-Marie 2:00
A4 Come Back Baby   2:30
A5 Malaguena Salerosa Words By – Traditional 3:44
A6 Bulgine Run Written By – Traditional 2:30
A7 Tomorrow Is A Long Time Written By – Bob Dylan 2:40
B1 Many A Mile Written By – Patrick Sky 3:15
B2 Erev Shel Shoshaniem Words By – Traditional 1:39
B3 With God On Our Side Words By – Bob Dylan 6:14
B4 Don't Follow Me Written By – Ron Constantine 1:55
B5 John's Lament Written By – Robb McKay 2:30
B6 Must I Go Bound Written By – Traditional 2:27
B7 He Was A Friend Of Mine   2:56

Best wishes, Thomas.