Sillman Company (Northern) Limited
Appearance
Sillman Company (Northern) Limited was a business in Thunder Bay.[1]
Advertisements
1978, Geology Journal
Advertised in the Geology Journal (1978), scan page 52, with the address printed as 555 Eighth Avenue, Box 2536, Thunder Bay, Ontario P7B 5G1. General contractor and authorized dealer for Armco Building Systems.[1]

References
- ↑ 1.0 1.1 Lakehead University Geology Journal (1978), scan page 52. Internet Archive.