Welcome to PatrickP.nl!
My name is Patrick Plomp. Since 1979, I have been collecting historical paper money and value-bearing documents from and around the Netherlands. What started as a passion grew into deep expertise. My interest goes beyond the banknotes themselves—I am especially fascinated by the stories behind them.

Over the past decades, I have served as chairman, secretary, and editor of the Dutch chapter of the International Banknote Society, as well as an international Regional Director. My knowledge is built on many years of research in major museum collections and by being a point of contact for collectors’ questions about paper money. In 2029, I will celebrate my 50th anniversary as a collector. I have regularly shared my knowledge through lectures, publications, and several catalogs, including two comprehensive works on Dutch paper money (1573–present), including issues for overseas territories.
I also recently contributed to a publication about the Netherlands Trading Society and its issues in Asia. My work is based on years of study, collaboration with specialists, and a continuous curiosity about this fascinating field of collecting.
Receiving questions is a source of inspiration for me. My motto is: You can’t know everything. It is precisely through questions that my research drive is fueled; they spark new searches and expand my knowledge. I therefore greatly appreciate receiving questions! Do you have questions about my publications or are you looking for advice on value-bearing documents, vouchers, guilders, euros, silver notes, banknotes, prison money, replacements, specimen series, good-overs, or anything else related to paper money or Dutch financial history? Feel free to contact me by email or speak to me at a fair. I’ll be happy to help.
Please note: Banknotes can only be viewed at fairs, never at home, as I do not keep them there.
Numismatic calendar:
You can find me at these fairs:
Friday and Saturday, May 1 and 2, 2026 at the MIF show in Maastricht. No table, but you can pick up your banknotes if arranged in advance.
MIF2024, MECC Maastricht. 10:00 - 18:00 Mifevents.com. (Forum 100, 6229 GV Maastricht).
In the past:
Friday and Saturday, September 26/27, 2025 at the MIF show in Maastricht. No table, but you can pick up your banknotes if arranged in advance.
MIF2024, MECC Maastricht. 10:00 - 18:00 Mifevents.com. (Forum 100, 6229 GV Maastricht).Monday, December 29, 2025, New Year’s Fair 2025, at Expo Houten (Utrecht) from 9:30 to 16:00.
Expo Houten, Meidoornkade 24 Houten, 3992 AE Netherlands + Google Maps. Visit WBevenementen.eu. Note! Tickets are cheaper online in advance. Ticket sales at https://ticketfestival.nl/wbevenementen. Tickets also available at the door. Free entry up to 12 years old.Saturday, September 20, 2025, Coin Manifestation Houten from 9:30 to 16:00.
Expo Houten, Meidoornkade 24 Houten, 3992 AE Netherlands + Google Maps. Visit WBevenementen.eu. Note! Tickets are cheaper online in advance. Ticket sales at https://ticketfestival.nl/wbevenementen. Tickets also available at the door. Free entry up to 12 years old.Saturday, December 28, 2024, New Year’s Fair Houten from 10:00 to 17:00.
Expo Houten, Meidoornkade 24 Houten, 3992 AE Netherlands + Google Maps.Sunday, November 10, 2024, from 10:00 - 16:00 “IBNS Paper Money Fair” Hotel Amrath, Lapershoek. Utrechtseweg 16, 1213 TS Hilversum. With table. (Not a member? No problem! Everyone is welcome.)
(27 and) 28 September 2024 MIF2024, MECC Maastricht. 10:00 - 18:00 Mifevents.com. (Forum 100, 6229 GV Maastricht).September 21, 2024, from 09:30 to 16:00 “Coin Manifestation 2024” Expo Houten, Meidoornkade 24 Houten, 3992 AE Netherlands + Google Maps. Visit WBevenementen.eu. Note! Tickets are cheaper online in advance (Tickets).
Sunday, June 30, 2024, from 10:00 - 16:00 “IBNS Paper Money Fair” Hotel Amrath, Lapershoek. Utrechtseweg 16, 1213 TS Hilversum. With table. (Not a member? No problem! Everyone is welcome.)
April 20, 2024, from 09:30 to 16:00 “Filanumis 2024” Expo Houten, Meidoornkade 24 Houten, 3992 AE Netherlands + Google Maps. Visit WBevenementen.eu. Note! Tickets are cheaper online in advance.
(3 and) 4 May 2024 MIF2024, MECC Maastricht. 10:00 - 18:00 Mifevents.com. (Forum 100, 6229 GV Maastricht), no table. 03.05.24 = dealers only.July 18, 2023, from 20:00 - 21:00, “Numismatic Circle The Hague and surroundings,” Remonstrant Church, Laan van Meerdervoort 955, with “Emergency Money The Hague and Surroundings in WWII.”
Sunday, November 18, 2023, from 10:00 - 16:00 “IBNS Paper Money Fair” Hotel Amrath, Lapershoek. Utrechtseweg 16, 1213 TS Hilversum. With table.
December 12, 2022, from 19:00. Lecture on Paper Emergency Money Netherlands. Numismatic Circle East Netherlands. ’t Warnshuus, Dreilumme 43, 7232 CN Warnsveld. Private event. Register via patrick@patrickp.nl.
Interested in a note you saw in stock? Send me an email to reserve it; this is almost always honored. Prevent it from being gone before you’ve seen it! No purchase obligation!
You don't know me? My stand (and me) look a lot like this (to see me in this suit again, would be a rare find):

Muntmanifestatie Houten, Netherlands 2015.

Muntmanifestatie Houten, Netherlands 2023.

Muntmanifestatie Houten, Netherlands. September 2024.