Manufacturer of case is Fluoroware Inc., with number H93-40 printed on the case. Hand written on masking tape "1988 "SYBIL" MCA-3 Test Chip". There is "#47" on a printed label on the case.
Manufacturer
Digital Equipment Corporation (DEC)
Identifying Numbers
Other number
#47
On clear lable on case
Dimensions
overall: 1/8 in x 4 in x 4 in; overall: 1/8 in x 4 in x 3 3/4 in