General note:
Cartographic material, architectural drawing, technical drawing - RG52M 70/23217: Items are rolled. RG52M 73/14571: In addition to the three missing plans, accession lacks items #21-25. RG52M 923015: Items #49 and 50 are rolled.
Source of title:
Title is based on the contents of the series.
Physical description note:
Technical drawing: Also consists of 164 diagrams. Cartographic material: Also consists of 23 profiles.
Note on the state of conservation:
Cartographic material, architectural drawing, technical drawing - RG52M 70/23217: Item #43 needs tear repair. RG52M 73/14571: Some items have tears along edges. RG85603/67: Some items have holes punched along one side. RG52M 923015: Item #27 has many tears and requires conservation. Items #49-50 are dirty and have tears along the edges.
Custodial history:
RG52M 70/7246 transferred from Public Works to the Picture Division, which accessioned the collection as #1996-87, and then transferred it to the Cartographic and Architectural Records Section in 1970. RG52M 70/23217 transferred in Dec. 1970 from the St. Lawrence Seaway engineering office in Montreal through the Seaway's Chief of Administrative Services in Cornwall, ON. RG52M 72/2305 and RG52M 72/5580 transferred in 1972 from the SLSA. RG52M 73/14571 transferred in 1973 from the SLSA. RG52M 78903/34 transferred from the SLSA to the National Map Collection, but was accessioned at a later date. RG52M 85603/67 was received in Feb. 1985 by the Federal Archives Division from the SLSA, and transferred in Feb. 1986 to the NMC. RG52M 923015 - provenance is uncertain.
Arrangement note:
RG52M 85603/67: Plans and drawings prepared by the Dept. of Transport (a few for predecessor depts.), and the St. Lawrence Seaway Authority, are arranged by numbered plan or drawing in various series, with a few unnumbered items at the end.
Cartographic math data:
Architectural drawing, cartographic material, technical drawing: Scales differ.
Original extent note:
Cartographic material, architectural drawing, technical drawing - RG52M 70/23217: Originally 52 plans were received. One item was disposed of as a duplicate. There is no record of what happened to the other 8 items. RG52M 72/2305: Originally received 39 plans, but 5 are missing. There is nothing in the acquisition documentation file about their disposal. RG52M 73/14571: Originally received 30 items. Acquisition documentation file indicates that 3 plans are missing. RG52M 923015: Originally received 50 items, but 3 were disposed as duplicates.
Copy/version note:
Cartographic material, architectural drawing, technical drawing: The following material has been microfilmed: RG52M 70/23217 - item #21; RG52M 72/5580 - items #19, 20, 31, 41, 42, 55-58, 106, 110, 130, 131, 133, 135a, 173, 187, 194-196, 203, 237, 239, 281, 286, 291, and 407; RG52M 85603-67 - items #2, 4, 6, 21, 56, 69, 83, 92 and 363; RG52M 923015 - items #1-11, 13-23, 25-39, and 41-43. Their NMC microfiche numbers are in the respective finding aids.
Markings note:
RG52M 73/14571: Architectural, technical drawings - Some drawings are stamped on verso: Dominion Bridge Co. Limited Drawing Office; cartographic material - file name, drawing and case numbers are stamped on the bottom of these sheets.
Signatures and inscriptions note:
RG52M 923015: Some of the items are signed by Thomas Munro, engineer.
Accruals:
Further accruals are expected.
