Philip and Mary, Shilling, dated 1555

Irish Coin Daily: Philip & Mary, Irish Silver Shilling of 1555, Mintmark Portcullis

Date: 1555   Description: Philip and Mary, Silver Shilling 1555, i.m. portcullis on reverse only, busts vis-à-vis under a crown, date below. This is a variety, with the obverse legend reading “RIGINA  AN” instead of the normal “REGINA . ANG:” Weight: 8.73 g Base coinage: 0.250 fine silver References: D&F 233;  S. 6500 Well struck…

1928-43 Florin, struck on large silver fragment (reverse only). The Old Currency Exchange, Dublin, Ireland.

O’Brien Coin Guide: Irish Pre-Decimal Florin Errors & Varieties

Introduction: This post is a continuation of the research work done by Derek Young and Prof. G.F. Mitchell – first published in the Irish Numismatics magazine. Sadly, this excellent magazine is no longer available and quite difficult to source. The information in this post relates to ‘minting errors’ on Irish pre-decimal florins. According to a…

1912 GB Penny (Heaton Mint) showing 'ghosting' of the king's head on the reverse

GB & Ireland – Pennies Struck by the Heaton Mint

Introduction In 1911, the National Insurance Act, introduced on July 1st, created created an unusually large demand for bronze and silver coins. The Royal Mint could not meet this demand, so some of its production was sub-contracted to a private mint – The Heaton Mint, Birmingham.  A massive 16,800,000 pennies were minted here in 1912…

How to identify the Irish chickless penny variety ireland coins coinage

O’Brien Coin Guide: How to identify the Irish “Chickless” Penny Variety

The ‘chickless’ variety is probably a die flaw caused by normal ‘wear and tear’ on the dies during the minting process.  This variety has become very popular with collectors over the past decade and some claim to have evidence of “progressive wear across several examples of 1968 pennies” leading to a chickless coin. The most…

1961 Ireland Halfcrown - the differences between the normal and mule reverse

O’Brien Coin Guide: How to identify the Irish 1961 Halfcrown ‘Mule’ variety

The 1961 ‘mule’ halfcrown was struck in error (or, possibly deliberately) from a reverse die from the 1928-37 type.  In 1938 the halfcrown reverse – the side with the horse on it – had been redesigned to improve the striking characteristics of the coin.  A single example of the 1938 trial of the new die…