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| Issuer | Sarawak (Controller of Rubber) |
|---|---|
| Year | 1941 |
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| Printer | Survey Department, Federated Malay States |
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| Obverse description | Blue and green coupon with scalloped guilloche border; serial number at top centre, denomination '25' in ornate letterpress panel at right, and 'B' in a medallion at upper left. Central text block states validity for export of twenty-five katis of dry rubber, with inscriptions in English, Jawi, and Chinese characters. Validity date and signature of Acting Controller of Rubber appear below. |
|---|---|
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| Protection description | Map of Malaya and 'SDM' cypher repeated. |
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| Comments |
These coupons were issued by the Controller of Rubber in Sarawak as administrative instruments for managing rubber export quotas during the International Rubber Regulation Agreement period, which imposed strict production ceilings on Malayan and Bornean producers throughout the late 1930s and into 1941. A kati is a unit of weight used across Southeast Asia, roughly equivalent to 1.33 pounds — so this coupon authorized export of a fairly small parcel, suggesting it was designed for use by smallholders rather than large estate operators.
Printing by the Survey Department, Federated Malay States, is notable: that office primarily produced maps and administrative forms, not currency or financial instruments. The watermarked paper elevates it above a purely clerical document.