Commercial Overprint Society of Great Britain
Vol. 3 No. 12; June 1, 2006
Guardian Assurance |
by Michael Behm |

Guardian Fire & Life was established in 1821; the first Company meeting being held in the City of London Tavern in Bishopsgate in November of that year. Henry Bonham-Carter (a cousin of Florence Nightingale) was the managing director from 1861–1902, the year when the comapny was renamed to Guardian Assurance.
In the mid-1950s, Guardian Assurance took over a series of insurance companies:
In 1968, the company merged with Royal Exchange Assurance (granted legal status by Royal Charter in 1720) to form the Guardian Royal Exchange Group (GRE).
In 1999, AEGON UK, part of the global AEGON nv group, acquired the Life and Pensions businesses of GRE (which included Guardian Financial Services) along with the Guardian name.
The Overprints
With all of that history and all of those acquisitions, it would be reasonable to expect that there would be a wide variety of overprints associated with Guardian Assurance. However, this appear not to be the case. From the reported patterns it appears that Guardian may have stopped using commercial overprints before the stamp issues of 1967.
| Pattern | Issues | Notes |
|---|---|---|
| CALEDONIAN INSURANCE COMPANY |
172 | One example has been reported: a receipt issued on 2 July 1901. |
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421, 442 | Also appears inverted on 421. |
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465, 488, 506, 518, 543b, 573, 613a | The spacing between the two lines varies by 0.5 mm. |