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Rockford Grade 77 (Model 8) Production Metrics

Grade:

77

Size:

18s

Model:

8

Total Runs:

6

Total Produced:

800

Production Era:

c.1887

Earliest Serial:

#253,501

Latest Serial:

#273,000

Rockford Grade 77 (Model 8) Production By Year

Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1887,1888]
[400,400]

Rockford Grade 77 (All Models) Production Metrics

Grade:

77

Size:

18s

Model:

8

Total Runs:

6

Total Produced:

800

Production Era:

1887 - 1888

Earliest Serial:

#253,501

Latest Serial:

#273,000

Rockford Grade 77 Production By Year

Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1887,1888]
[400,400]

Rockford Grade 77 Production Runs

Run Sequence Run Start Run End Quantity Est. Production Year Profile Code
1 253,501 253,700 200 1887 18S-M8-15J-HNL-A
2 267,801 268,000 200 1887 18S-M8-15J-HNL-A
3 272,001 272,100 100 1887 18S-M8-15J-HNL-A
4 272,201 272,300 100 1887 18S-M8-15J-HNL-A
5 272,601 272,700 100 1887 18S-M8-15J-HNL-A
6 272,901 273,000 100 1887 18S-M8-15J-HNL-A
RUNS

6

 FIRST

253,501

 LAST

273,000

 ESTIMATED PRODUCTION

800

 PRODUCTION ERA

1887 - 1888