Middle trench Alvastra Middle trench 1977 – Black and white Alvastra Middle trench 1977 – Colour Alvastra Middle trench 1978 – Black and white Alvastra Middle trench 1978 – Colour Alvastra Middle trench 1979 – Black and white Alvastra Middle trench 1979 – Colour Alvastra Middle trench 1980 – Black and white Alvastra Photo list – Middle trench 1978 Black and white
