| RHP1745 | Map of the lands of Ballysavage, Moyadam and Tobergill, Ireland | nd |
| RHP9773 | Plan of the county of Antrim, with inset pictorial view of the Giant's Causeway | 1780 |
| RHP22196 | Ordnance Survey 1/2500 plan (Antrim,XLII.15) | 1904 |
| RHP22197 | Ordnance Survey 1/2500 plan (Antrim,XLVIII.3) | 1904 |
| RHP22198 | Ordnance Survey 1/2500 plan marked to show road from Belfast to Toomebridge at crossing with Cookstown branch of Belfast and Northern Counties Railway, the locus of an accident | 1913 |
| RHP22199 | Plan of road between Toomebridge and Belfast at crossing with [Cookstown branch of Belfast and Northern Counties Railway] | 1914 |
| RHP34136 | Admiralty chart of Irish coast from Larne to Bloody Foreland with inset of The Maidens. (Vignettes of coast of Islay, Scotland, and Irish coast between Horn Head and Glengad Head, and from Inishtrahull to Bloody Foreland) | 1903 |
| RHP34137 | Admiralty chart of Irish coast from Lough Carlingford to Lough Larne, including Isle of Man and Scottish coast from Port Patrick to Kirkcudbright. | 1903 |
| RHP34139 | Admiralty chart of Lough Larne; with inset of Larne Harbour. (Vignettes of Isle of Muck and Gobbins Head, Scawt Mountain and Ballygally and entrance to Lough Larne) | 1899 |
| RHP34140 | Admiralty chart of Belfast Lough. (Vignettes of marks for clearing North Briggs, Gillet and Ninaen bushes) | 1903 |
| RHP72747 | Web Glazing Calender No. 871 for North of Ireland Paper Mills Company Ltd, Larne: General Arrangement. | 1907 |
| RHP72869 | Patent Refining Engine No. 1 for North of Ireland Paper Company Ltd, Inver Mill, Larne: General Arrangement. | 1907 |
| RHP72885 | Refiner (Large Size, Motor Driven) No. 114 for North of Ireland Paper Mills Ltd, Larne: Arrangement. | 1933 |
| RHP72892 | Rag Duster No. 266 for Laganvale Fibre Syndicate Ltd, Belfast: Plan and elevation. | 1900 |
| RHP72893 | Square Duster for Laganvale Fibre Syndicate Ltd, Belfast: Plan and elevation. | 1901 |