O&NY/NYC Valuation maps, 1 Jan 1921, provided by Chris Granger thanks to NYSHS. Each map is 20-30 mg

-  Pana towards Russell  O&NY.V112.21.jpg
-  Crossing today's Parkway Road  O&NY.V112.22.jpg
-  Through Edwards  O&NY.V112.23.jpg
-  Through Piperville O&NY.V112.24.jpg
-  Ramsayville  to Leitrim and Anderson Roads O&NY.V112.25.jpg
-  Hawthorne to Ramsayville  O&NY.V112.26.jpg
-  Hawthorne northward  O&NY.V112.27.jpg 
-  O&NY/NYC Yard with CAR/GTR -connection  O&NY.V112.28.jpg 
-  O&NY/NYC freight terminal in Ottawa  O&NY.V112.29.jpg