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Rockford Grade 310 (Model 1) Production Metrics

Grade:

310

Size:

12s

Model:

1

Total Runs:

3

Total Produced:

400

Production Era:

c.1908

Earliest Serial:

#772,201

Latest Serial:

#787,200

Rockford Grade 310 (Model 1) Production By Year

Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1908]
[400]

Rockford Grade 310 (All Models) Production Metrics

Grade:

310

Size:

12s

Model:

1

Total Runs:

3

Total Produced:

400

Production Era:

c.1908

Earliest Serial:

#772,201

Latest Serial:

#787,200

Rockford Grade 310 Production By Year

Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1908]
[400]

Rockford Grade 310 Production Runs

Run Sequence Run Start Run End Quantity Est. Production Year Profile Code
1 772,201 772,300 100 1908 12S-M1-21J-HNP-A5P
2 773,101 773,200 100 1908 12S-M1-21J-HNP-A5P
3 787,001 787,200 200 1908 12S-M1-21J-HNP-A5P
RUNS

3

 FIRST

772,201

 LAST

787,200

 ESTIMATED PRODUCTION

400

 PRODUCTION ERA

c.1908