Book  (1956)  Page(s) 133.  
 
Hermann Löns (Math. Tantau 31), bushy, 150, weak repeat, blood-red, decorative fruit, single.

Book  (1947)  Page(s) 160.  
 
Hermann Lons (Climbing H.T.) has large single flowers of bright red, borne upon vigorous upstanding canes in clusters, and is well suited for growing as a pillar rose. Tantau 1931. Climber. Fragrant...June-July. Hardy.

Website/Catalog  (1938)  Page(s) 35.  
 
Hermann Löns (Parkrose) (M. Tantau 1931). (Ulrich Brunner X Red Letterday). Large, single, bright red blooms, wild rose fragrance, hardy, 1.50 m high.

Book  (1936)  Page(s) 426.  
 
Löns, Hermann (HP) Tantau 1931; Ulrich Brunner X Red-Letter Day; bright dark blood-red, large, single, cup-form, in large clusters, fragrance 5/10 (Can), floriferous, repeats, growth 7/10, climbing, 2m., Sangerhausen

Website/Catalog  (1933)  Page(s) 42.  
 
New Roses 1933.  Hermann Lons (HP.  M. Tantau 1931)  Much superior to 'Bergers  Erfolg'.  Makes a large bush with glossy green leaves. Blooms enormously in early summer. Flower single, very large, colour pure glowing crimson in large trusses. Price 4/- each.
Not flowered yet.
 

Magazine  (1933)  Page(s) 19.  
 
Hermann Löns (Math. Tantau). A magnificent, single, bright red hybrid perpetual. The plant forms a shrub up to 150 cm tall and blooms unheard of floriferously all summer. She is fully hardy and is especially suitable as park rose, solitary or in larger groups.

Book  (1932)  Page(s) 92.  
 
Hermann Löns, tantau 1931, 1.50 m, deep dark red, hybrid perpetual, magnifivent single blooms, in clusters, repeat-flowering, hardy, prune little.