Description
Project files, drawings, estimates and correspondence of a maker of scientific instruments in Birchridge.
Provenance
Brought to a Lazarus rescue day by a former owner. Read in four drives; every sector was recovered by at least one. The image matches a checksum published by the original distributor.
Preservation
- Fixity (SHA-256)
9386b36b4f4059a5bf1ed99d446be237c0b4a410e847c0bcdcd8a84de68f19b9- Last verified
- Oct 16, 2026, by Vigil
- Migrated to
- PDF/A-2b, with the original files kept
- Copies
- Three, on two kinds of storage, in two cities
- Original carriers
- Kept in cold storage in Vancouver
Access
Free, in the Lazarus reading room in Vancouver and in partner reading rooms. Copies may be taken away.
Reading-room copies are migrated to PDF/A-2b, with the original files kept. The recovered files are kept exactly as they were found.
Cite as: Chen Instruments, Chen Instruments: files, 1990–1999 (1990–1999). Lazarus Archive, LZ-15525.