Booklet  (1938)  Page(s) 125.  
 
Japanese Peonies (albiflora)
Currant Jap (Jeffries)* (48)
Large, amaranth purple, midseason. Staminodes oblanceolate, purple-tinged, with yellow on the edges. Carpels in transition, smooth, tips dark red; disk inconspicuous, pink. Plant medium size, compact; flowers many, close to the foliage.

Website/Catalog  (1932)  Page(s) [3].  
 
[From a 4-page circular titled "Japanese Type Peonies"]
In reds we have some of the most splenis and showy peonies that are grown. The colors in the red Japs and singles are often much better than the doubles. [...]
Currant Jap from the garden of Mrs. Edward Harding and noted so favorably in her book, Peonies for the Little Garden [sic], is excellent.

Book  (1928)  Page(s) 57.  
 
Check List of Japanese Peonies
Currant. (Origin unknown.) Pink.