Peonies only : an unusual offering of scarce and commercial varieties, wholesale price list, fall 1927 - Harmel Peony Company (Berlin, Md.); Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Berlin, Maryland, Harmel Peony Co, 1927, 1927)
https://www.biodiversitylibrary.org/bibliography/138217
Keywords: Berlin|Bulbs (Plants)|Maryland|Nursery stock|Peonies|Prices|Seeds|Varieties|Wholesale trade|