The Clonbrook Post Office was opened on September 1, 1870, in the East Coast Demerara Postal District, 18 miles from Georgetown. By 1890, it was located at the Clonbrook Railway Station. On May 1, 1899, the office was moved to Ann’s Grove and later returned to the Railway Station in August 1929.

The post office served the Ann’s Grove Village district and continued using the Ann’s Grove date-stamp until 1951, when modern Clonbrook postmarks began to appear. It was initially assigned the coded postmark “E8C.”

The following are the Date Stamps used at Clonbrook with EKD prior to 22 January 1901, the day marking the end of the reign of Queen Victoria. In addition to listing the Panda Type #, for reference, we also list the T&H Type from The Postage Stamps and Postal History of British Guiana by Townsend & Howe, the Type and referenced page from The Postal History of British Guiana by Edward B. Proud, and the referenced pages from British Guiana Coded Postmarks – Study paper No 3 by Michael Rego, for code-marks.

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→ Panda Type # E  2 . 9 – Clonbrock
(Used at Clonbrook)

T&H Type 2 p. 299;     Proud Clonbrook D2 p. 158

EKD: 5 Jan 1880 (New EKD) / LKD: 8 Dec 1880

This Clonbrock Circular Date Stamp (C.D.S.) is a Panda Type E2 postmark. The Panda Type E2 is Single Ring (S.R.), 26.5 mm.  American Type.  3 line date (3 L.D.) B.G. at foot.  Known with year missing.

The Panda Type E2.9 was used at the Clonbrook Post Office and the strike is a misspelling of the Village name. It is cataloged as a Type 2 and listed as “Rare” in The Postage Stamps and Postal History of British Guiana by Townsend & Howe.

The New EKD 5 Jan 1880 was in the Goldblatt Collection. Current owner unknown.

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→ Panda Type # E  7 . 10-1 – Clonbrock

T&H Type 5a p. 301;     Proud Clonbrook D3 p. 158

EKD: 6 Jun 1881 / LKD: 30 Apr 1899

This Clonbrock Circular Date Stamp (C.D.S.) is a Panda Type E10 postmark. The Panda Type E10 is Double Ring (D.R.), 23 – 24.5 / 13 – 14.5 mm. 2 L.D. with Y.A. B. Guiana at foot

The Panda Type E7.10-1 was used at the Clonbrook Post Office and the strike is a misspelling of the Village name. It is cataloged as a Type 5a and listed as “Rather Common” in The Postage Stamps and Postal History of British Guiana by Townsend & Howe.