1st cash book – 1921. The very first page of this cash book. Seeds were traded to various nurseries, corporations and individuals.	Order book -1927. The origin of the seeds was guaranteed by means of an inspection seal.	1948 – Pine plants were sold for new forest plantings, like to: Rector van Putte in Putte (Onze Lieve Vrouw ter Duinen), Bieduinenhof (now Titurel), Mr. Cogels (estate ‘De Groote Meer’) and the Mastbos in Breda.
July 16, 1956 – Advertisement 1956 (advertising really works) – In my father’s correspondence book this letter was registered: Request for placing an advertisement in trade magazine ‘De Bloemisterij’.	July 20, 1956 – Front page of ‘De Bloemisterij’.	July 21, 1956 – The advertisement (bottom right).
July 21, 1956 – Reaction to advertisement.	July 26, 1956 – Correspondence book: order confirmation.