Drawing of P52 by Charles Elcock as published in the article W. G. Wood-Martin, <i>The Rude Stone Monuments of Ireland (Continued).</i> The Journal of the Royal Historical and Archaeological Association of Ireland, Fourth Series, 7, no. 68/69 (1886): 539–95. Original caption:<br>Fig. 61.—General View of No. 52 Monument, Carrowmore, looking South—A Cromleac. (Height, 4 feet 6 inches.)<br>The caption appears to be wrong, i.e. this appears to be rather “looking north-west” than “looking South”, see <a href="//commons.wikimedia.org/wiki/File:Carrowmore_Megalithic_Cemetery_P52_Ground_Plan_by_W._G._Wood-Martin_1886.png" title="File:Carrowmore Megalithic Cemetery P52 Ground Plan by W. G. Wood-Martin 1886.png">this ground plan</a> for comparison.
Charles Elcock (1834–1910) (“C E” signature in the picture; “C. Elcock” is named as author on p. 552, n. 1; <a rel="nofollow" class="external text" href="http://microscopist.net/ElcockC.html">biographical webpage at microscopist.net</a>)
1886
<a rel="nofollow" class="external text" href="https://archive.org/download/journal02irelgoog/journal02irelgoog.pdf">p. 595 of W. G. Wood-Martin, <i>The Rude Stone Monuments of Ireland (Continued).</i> The Journal of the Royal Historical and Archaeological Association of Ireland, Fourth Series, 7, no. 68/69 (1886): 539–95</a>; this image was extracted from the PDF (page number 691), the white background was made transparent, and the format was converted to PNG.