Price Lists ("Prijscouranten")
When I got permission to literally ransack the Sonnema distillery visitors' centre for anything still Plantinga-related, I discovered a tin with about 25 so-called "Prijscouranten", price list booklets that used to be handed out to other companies Plantinga did business with. Below you will see some scans from these booklets. The 1913 and 1927 ones were real booklets, the others were folded leaflets. Later I also got some scans sent by others.