Mystery instrument in General Concertina Discussion Posted June 14, 2020 Interesting! I had looked at other Scates instruments at the Horniman and discounted them - the action was not the same. Must have missed this one. Scates seems to have used 3 or 4 different actions! Also the connection between Scates and Austin my be a clue, though my instrument doesn't have any of the typical JA impression. Long time since I was in Gateshead. Did my teacher training in Ponteland and loved the Newcastle music scene way back in the 1970s!!