80 results in NMAH.AC.1072 for "Railroads -- Surveying"
1920 July
1920 June
undated
1920 August
1916
undated
1916
1920 July
1920 August
undated
1920 August
1920 March
1919 January
undated
1918 December
1918 October
1918 August
1916 September
1916 August
1916 May
1916 January
undated
1919 February
1918 December
1919 September
undated
1919 May
1919 July
1916 September
1919 December
1919 September
1923 May
1920 February
undated
1920 January
1920 November
undated
1923 March
1919 December
1920 October
1918 September
undated
1920 January
1923 May
1920 May
undated
1914 September
1919 June
1919 July
1919 December
1918 November
1919 August
1919 September
1919 October
1919 December
1920 April
1921 November
undated
1919 August
1919 September
1919 November
1919 May
1916-08-1916-09
undated
1919 December
1919 November
1919 September
1919 August
undated
1919 October
1919 September
1919 July
1919 June
1919 December
undated
1918 October
1918 September
1918 October
undated
1919 September
1920 October
1918 September
undated
1918 August
1920 October
undated
1918 September
1918 August
undated
1918 September
1918 August
1918 August
1918 July
1920 October
1920 September
undated
undated
1920 October
1918 September
1918 September
1918 August
undated
1918 July
1918 August
1918 September
undated
1918 September
1918 October
1918 November
undated
1919 June
1919 July
undated
1918 December
1919 January
1918 May
1919 April
1919 May
1919 June
undated
1919 March
1919 February
undated
1919 June
undated
1919 April
1919 February
1918 September
1918 August
1924 April
1919 January
undated
1924 July
1919 March
1919 April
1919 September
undated
1918 August
1919 December
1919 June
1918 September