This is from an Orvis 6 1/2 foot 5 weight three piece rod. It was recently
aquired by a friend.  The rod  has a very pleasant, moderate action. I don't
know the model number, but the serial number indicates it was built in
1952.
The sections are 26 1/2 inches long, so it makes a nice 3 piece pack rod.
Tolerances and general craftsmanship are very good.
0 - .058
5 - .072
10 - .080
15 - .092
20 - .118
25 - .132
30 - .146
35 - .165
40 - .180
45 - .195
50 - .210
55 - .230
60 - .245
65 - .270
70 - .285 ( est.)
75 - .290 ( est. )
78 - .300 ( est. )