Parliamentary boundary post, Beside 109 King's Road, Belfast, Co. Antrim, BT5 7EF

A cast-iron administrative boundary marker post standing beside King's Road in Belfast, dating from 1918 (though the post itself was likely originally erected when the County of the Borough of Belfast was created in 1898, with the plaque affixed in 1918).

The post is unaltered and remains in its original setting, embedded in the footpath along the south side of King's Road, positioned on the centre line of the Knock River which flows beneath the road at this point. It is of slightly tapered cylindrical profile, measuring approximately 3 feet high by 1 foot in diameter. It features a banded octagonal base and an oversailing flat octagonal cap with a slightly smaller fluted circular upstand. The front face bears the shield of Belfast Corporation's coat of arms, below which is an attached plaque reading "Parliamentary/ and Municipal/ Boundary of/ Belfast/ Pottinger Division/ Pottinger Ward/ 1918". The plaque is secured to the post with four countersunk screws.

The post marks the outer extent of the administrative jurisdiction of Belfast Corporation (as Belfast City Council was then known) and of Pottinger District Electoral Division and Ward. It was erected in response to the Redistribution of Seats (Ireland) Act 1918, which abolished the existing four parliamentary constituencies in Belfast and increased their number to nine—Cromac, Duncairn, Falls, Ormeau, Pottinger, St Anne's, Shankill, Victoria, and Woodvale. Each new parliamentary division encompassed one or several municipal wards used for elections to Belfast Corporation. Pottinger Division encompassed only the single municipal ward of the same name.

The marker holds particular historical significance as it commemorates the first use of these constituencies in the 1918 General Election held on 14 December 1918, just over a month after the cessation of the First World War. This election was conducted under the Representation of the People Act 1918 (also known as the Fourth Reform Act), which for the first time granted voting rights to all men over 21 years of age and all women over 30—a major expansion from the previous system in which only male property owners could vote. This was also the first election to be completed within a single day, whereas previous elections had been spread over several weeks.

Following the inception of the devolved parliament for Northern Ireland in 1922, the number of Westminster MPs was greatly reduced and the Pottinger parliamentary constituency, created only four years previously, was abolished with the previous constituency of East Belfast restored. The municipal wards continued in use, though some, including Pottinger, were subsequently reconfigured and renamed. Belfast Corporation was superseded by Belfast City Council in 1973. Pottinger Electoral Division was created in 1985 and encompassed six wards—Ballymacarrett, Bloomfield, Orangfield, Ravenhill, The Mount, and Woodstock (Pottinger Ward no longer being extant). The division was abolished in 2014, with all its wards except Orangfield becoming part of the new Titanic Electoral Area; Orangfield was included in Lisnasharragh Electoral Area.

The boundary post is relatively rare, as many such markers have been lost to road widening and random removal. It has group value with two nearby boundary posts also positioned along the line of the Knock River.