10-Pere Marquette Ry/Chesapeake & Ohio Ry Track Diagram blueprints or sheets

Description

10 track diagram sheets from Michigan and Indiana from the Pere Marquette Ry and Chesapeake & Ohio. All are old and original and have some folding and wear.  Included are the following:
1) 8.5x11" Track at Holland, Michigan 02/26/1952
2) 8.5x11" part of Boardman Yard at Traverse City 03/04/1969
3) 11x25" PM print from Grand Rapids, Michigan, included a page of elevations.
4) 11x25" Grand Rapids - Track Change in the same area as #3 04/12/1951.
5) 11x23" St. Joseph, Michigan, side track changes 05/25/1965.
6) 11x17" Track changes at Zeeland, Michigan, 06/24/1971
7) 11x17" Woodbury, Michigan 05/25/1960
8) 11x17" Six Lakes, Michigan 08/22/1969; includes 6 pages of memos & other forms.
9) 27x71" La Porte, Indiana U.S.-6 Crossing Details 05/03/1962.
10) 11x22" Petoskey, Michigan 09/07/1972