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Rockford Grade 820 (Model 8) Production Metrics

Grade:

820

Size:

18s

Model:

8

Total Runs:

9

Total Produced:

331

Production Era:

1897 - 1898

Earliest Serial:

#503,461

Latest Serial:

#513,300

Rockford Grade 820 (Model 8) Production By Year

Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1897,1898]
[141,190]

Rockford Grade 820 (All Models) Production Metrics

Grade:

820

Size:

18s

Model:

8

Total Runs:

9

Total Produced:

331

Production Era:

1897 - 1898

Earliest Serial:

#503,461

Latest Serial:

#513,300

Rockford Grade 820 Production By Year

Production dates are estimations based on serial number extrapolation and should be accurate within +/- 3 years.
[1897,1898]
[141,190]

Rockford Grade 820 Production Runs

Run Sequence Run Start Run End Quantity Est. Production Year Profile Code
1 503,461 503,470 10 1897 18S-M8-17J-HNL-APTI
2 503,484 503,489 6 1897 18S-M8-17J-HNL-APTI
3 503,521 503,531 11 1897 18S-M8-17J-HNL-APTI
4 503,537 503,540 4 1897 18S-M8-17J-HNL-APTI
5 503,611 503,620 10 1897 18S-M8-17J-HNL-APTI
6 509,001 509,100 100 1897 18S-M8-17J-HNL-APTI
7 513,102 513,181 80 1898 18S-M8-17J-HNL-APTI
8 513,183 513,251 69 1898 18S-M8-17J-HNL-APTI
9 513,260 513,300 41 1898 18S-M8-17J-HNL-APTI
RUNS

9

 FIRST

503,461

 LAST

513,300

 ESTIMATED PRODUCTION

331

 PRODUCTION ERA

1897 - 1898