Following accounts through monetary reform
A qualified connection from Java’s rupee accounts to Indies guilders, stronger evidence for the Vietnamese đồng’s earlier continuity, and direct verification of Melaka’s calain accounting. No extra currency is created for a new issuer or note series.
Research revision 51 · 15 October 2026. Download the research release · Exact changes and dated paths · Previous Southeast Asia research
Java: the books as well as the coins
The 1817 ordinance requires government accounts in Indies guilders. Related instructions discuss taking over rupee books and collecting tax arrears. Together they support a qualified fiscal succession from Java rupee accounting to the Netherlands Indies guilder.
The complete ordinance and private-obligation schedules remain to be checked. The relationship does not claim a universal exchange ratio or settle every regional identity boundary. No direct parent from the Dutch guilder is added.
Indonesia: the 1950 gap remains visible
The contemporary IMF report confirms that the 1950 reform reached bank deposits as well as Java Bank and Treasury notes. It does not provide the complete settlement of ORI, NICA and regional obligations. The rupiah profile therefore retains its qualification around the 1950 transition.
International Monetary Fund — Annual Report 1950, chapter II: Exchange Policy and Par Values
Vietnam: continuity in actual obligations
The 1951 decree sets one bank đồng equal to ten Treasury đồng and retains both kinds of notes in circulation. The 1953 decree expressly defines the account unit, with an exception for Nam Bộ. The 1959 circular carries balances and existing contracts forward at 1:1,000. In 1978, the northern account enters the nationwide unit at 1:1; the southern rate is 0.80:1, including deposits, wages, pensions and enterprise capital.
These primary administrative records strengthen the earlier financial and northern history within the current đồng profile. Its founding connection to the Indochinese piastre remains qualified, and the separate southern input remains a later absorption.
Democratic Republic of Vietnam — Sắc lệnh 20/SL, 12 May 1951
Democratic Republic of Vietnam — Sắc lệnh 162/SL, 20 May 1953
Democratic Republic of Vietnam, Prime Minister Phạm Văn Đồng — Thông tư 097-TTg, 28 February 1959: conversion of accounts and obligations
Council of Government, Vietnam — Decision 87-CP, 25 April 1978
Melaka: Pires checked directly
Printed pages 274–275 of the Pires edition record both prices and a port levy in calains. The Melaka account profile now rests on that direct check. The 1512–1515 narrative window is retained; it is not a foundation date. A later Malay-currency connection remains unproven.
What the depth figures mean
| Endpoint | Method | Previous witness | Current witness |
|---|---|---|---|
| IDR | Including qualified ancestry | 1942 | 1815 |
| VND | Strict ancestry | 1978 | 1946 |
Strict paths exclude qualified links and qualified identity associations. Date ranges use their latest bound in this comparison. At or before 1500, the inherited endpoint register remains at 34 strict paths and 96 including qualified paths. An older inherited path is not evidence of a locally invented ancient currency.
Next records to recover
- Indonesia — 1950 settlement remains incomplete. Contemporary evidence confirms effects on deposits, but the full ORI/ORIDA and NICA balance and private-debt schedules were not recovered. The existing ORI association with the modern rupiah remains qualified. Obtain the 28 March 1950 Finance Minister decision No. 53910/UU and the 1950 Java Bank settlement instructions; compare actual bank balance sheets. Treat the indexed Tilburg Bank Soerakarta passage as a lead until the complete source is retrieved.
- Java — Full 1817 implementation and identity boundary. A qualified fiscal succession can now be drawn; no general debt-conversion ratio or extra currency is inferred. Recover all articles of Staatsblad 1817 no. 4 and actual treasury ledgers. Decide whether regional usages were a continuing renamed account or distinct successor accounting before any consolidation or promotion.
- VOC accounts — Earlier regional gulden and rijksdaalder accounts. No direct Dutch-guilder parent or automatic 1602 beginning is added. Pair regional account ledgers with the relevant monetary ordinances and the intervening rupee/guilder rules. Company foundation dates and exported coins are insufficient.
- Vietnam — Piastre obligations and regional resistance accounts. The northern continuity is stronger; the piastre-to-đồng founding link remains qualified. Decree 162 expressly excludes Nam Bộ. Verify the 1946 and 1954 debt conversion instruments and distinguish each regional account. The 1948 ban on piastre notes is not itself a conversion schedule.
- Myanmar — Old kyat into colonial rupee accounts. Published histories point to the 1886–1888 coin exchange, but that alone does not prove the treatment of old kyat-denominated debts. Inspect Upper Burma Finance Proceedings, July 1886, and judicial/treasury instructions on existing obligations before drawing a modern connection.
- Cambodia and Laos — Bat and nen accounts. No new connecting edge is admitted from coin tables, bullion weights or statements of circulation. Find dated contracts, taxes and settlement instructions; separate Cambodian bat from Siamese coin use and Lao nen account obligations from silver bars.
- Malay Peninsula and Aceh — Connections beyond verified Melaka and Acehnese accounts. Pires has now been checked directly. Johor, Kedah, Patani and Aceh-to-later conversions remain open. Inspect Portuguese and later local contracts and fiscal records. Shared calain, tin, mas and tael terminology cannot establish the missing connections.
- Philippines and Timor — Local debt and tribute accounts. No new parent of a modern currency is established in this pass. Follow the Laguna debt’s local context and dated Timorese tribute records; distinguish standardized obligations from deliveries in kind and foreign coin quotations.