1928 catalogue of "sterling quality" seeds (garden, field, flower and lawn) - Allen, Sterling & Lothrop.; Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland, Maine, Allen, Sterling & Lothrop, 1928, 1928)
https://www.biodiversitylibrary.org/bibliography/139754
Keywords: Agricultural implements|Bulbs (Plants)|Catalogs|Flowers|Grasses|Maine|Nursery stock|Portland|Seeds|Vegetables|