| RHP41720 | 1. Architectural plan (contract drawing no.4) of Ground Floor of Knockdow House, Toward in connection with additions and alterations: 2. Duplicate of no.1, uncoloured and without signatures | 1919 |
| RHP41721 | 1. Architectural plan (contract drawing no.5) of Bedroom Floor of Knockdow House, Toward in connection with additions and alterations: December 1919 2. Duplicate of no.1, uncoloured and without signatures | 1919 |
| RHP41722 | 1. Architectural sections (contract drawing no.6) of Knockdow House, Toward in connection with additions and alterations: 2. Duplicate of no.1, uncoloured and without signatures | 1920 |
| RHP41723 | Architectural sections (drawing no.6A) of Knockdow House, Toward in connection with additions and alterations: | 1920 |
| RHP41724 | 1. Architectural elevations (contract drawing no.7) to North and East of Knockdow House, Toward in connection with additions and alterations: 2. Duplicate of no.1, uncoloured and without signatures | 1920 |
| RHP41725 | Architectural elevations (drawing no.7A) to North and East of Knockdow House, Toward in connection with additions and alterations: | 1920 |
| RHP41726 | Architectural plan of Ground Floor of Knockdow House, Toward showing alterations and additions of 1922: | 1928 |
| RHP41727 | Plans, elevation and section of proposed conversion of old laundry into men's room, Knockdow Estate | 1935 |
| RHP41728 | Architectural plans, elevations and sections of proposed conversion of old laundry into men's room, Knockdow Estate | 1935 |
| RHP41729 | Architectural plans, elevations and sections of proposed conversion of old laundry into men's room, Knockdow Estate | 1935 |
| RHP41730 | Architectural plans, elevations and sections of proposed conversion of old laundry into men's room, Knockdow Estate | 1935 |
| RHP41731 | Architectural plans, elevations and sections of proposed conversion of old laundry into men's room, Knockdow Estate | 1935 |
| RHP41732 | Architectural plans, elevations and sections of proposed conversion of old laundry into men's room, Knockdow Estate | 1935 |
| RHP41733 | Architectural plans, elevations and sections of proposed conversion of old laundry into men's room, Knockdow Estate | 1935 |
| RHP41734 | Architectural plans and sections of proposed concrete sheep dipper at Brackley Farm, Knockdow Estate: | 1927 |
| RHP41735 | Architectural plans and sections of proposed concrete sheep dipper at Brackley Farm, Knockdow Estate: | 1927 |
| RHP41736 | Architectural plans and sections of iquid manure tank for Gortanansaig Farm, Knockdow Estate, Toward: | 1927 |
| RHP41737 | Architectural plans and sections of liquid manure tank for Gortanansaig Farm, Knockdow Estate, Toward: | 1927 |
| RHP41738 | Plan of stair at Inverchaolain Lodge, Knockdow Estate | 1927 |
| RHP41739 | Plan, elevations and isometric view of alterations [at Inverchaolain Lodge, Knockdow Estate] | 1927-1928 |
| RHP41740 | Drawing of a panelled door at Inverchaolain Lodge, Knockdow Estate | 1927-1928 |
| RHP41741 | Drawing of an alternative exterior at [Inverchaolain Lodge, Knockdow Estate] | 1927-1928 |
| RHP41742 | Drawing of an alternative exterior at [Inverchaolain Lodge, Knockdow Estate] | 1927-1928 |
| RHP41743 | Plan of stair at Inverchaolain Lodge, Knockdow Estate | 1928 |
| RHP41744 | Plans, part section and detail of proposed alterations to stair at Inverchaolain Lodge, Knockdow Estate | 1928 |
| RHP41745 | Plans, part section and detail of proposed alterations to stair at Inverchaolain Lodge, Knockdow Estate | 1928 |
| RHP41746 | Plans, part section and detail of proposed alterations to stair at Inverchaolain Lodge, Knockdow Estate | 1928 |
| RHP41747-41756 | Architectural plans, elevations, sections and details of proposed improvements to Double Gate Lodges, Knockdow Estate: | 1930-1931 |
| RHP41757-41762 | Architectural plans, elevations and sections of proposed improvements to Shore Cottages, with site plans of Shore Cottages and Double Lodges, Knockdow Estate: | 1930 |
| RHP41768-41770 | Architectural plans, elevation, section and site plan of alterations for proposed new bathroom at overseer's house, Kilmichael, Knockdow Estate: | 1931 |
| RHP41771 | Architectural plans of Ground Floor, First Floor and Basement of Knockdow House, Toward showing existing and proposed central heating and hot water supply: | 1930 |
| RHP41772 | Details of pipes for heating and hot water supply at Knockdow House, Toward for Sir Norman Lamont, bt: | 1937 |
| RHP41773 | Architectural plan of Knockdow House, Toward showing drains: | 1935 |
| RHP41774 | Architectural plan, section and site plan of garage buildings, Knockdow Estate: | 1930 |
| RHP41775-41777 | Architectural plans, elevations, sections and site plan of proposed extension to garage at Knockdow, Knockdow Estate: | 1934-1935 |
| RHP44126 | Ordnance Survey 6 inch plan marked to show estate of Hafton, between Ardbeg and Dunoon and round Corrachaive and Glenlean. | 1868 |
| RHP76240 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXXIII.SE) marked to show farm boundaries | [1944-1954] |
| RHP76241 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXXIII.SW) marked to show farm boundaries | [1944-1954] |
| RHP76255 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXXXIII.SE) marked to show farm boundaries | [1944-1954] |
| RHP76259 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXXXIII.NW) marked to show farm boundaries | [1944-1954] |
| RHP76260 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXXXIII.NE) marked to show farm boundaries | [1944-1954] |
| RHP76261 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXXXIII.SW) marked to show farm boundaries | [1944-1954] |
| RHP76262 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXXXIII.SE) marked to show farm boundaries | [1944-1954] |
| RHP76411 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXXII.NE) marked to show farm boundaries | [1944-1945] |
| RHP76413 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXXII.SE) marked to show farm boundaries | [1944-1945] |
| RHP76414 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXXIII.NW) marked to show farm boundaries | [1944-1945] |
| RHP76523 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXIII.SW) marked to show farm boundaries | [1944-1945] |
| RHP76572 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXII.SE) marked to show farm boundaries | [1944-1945] |
| RHP96386 | Ordnance Survey 6 inch plan (Argyll, sheet CXCIV.SE & CXCV.SW) coloured to show classification of land | [1944-1955] |
| RHP97536 | Ordnance Survey 6 inch plan (Argyll, sheet CXCIV) coloured to show classification of land | [1944-1954] |