A Calligraphy by Sugayama Nagakoto (1875-1963) This work is dated 1929.
無一物中無盡藏 no one item within no limit hide
春夏秋冬花不絕 Spring Summer Autumn Winter flower no end
The meaning of this calligraphy is that even if one has nothing, one always has their virtue. "Always" is expressed by naming all of the seasons of the year and the "flowers" are our virtue.