Neville receives Professor Imhoff's letter
Date (happened)
November 1949
conclusion · probable
Why
dc1-agreement-20261004, pm-actor-551 (PM 8702)
Reasoning
1 claim, no conflict: 1949-11 (passage:526721).
November 1949
stated · probable · preferred
Why
Carrier delivery dates were live-read but not used as date support.
Reasoning
Neville directly states the receipt month. The contiguous explanation identifies the paper sent with it as 1949, supporting the receipt year but not independently proving it; month-level probable is therefore warranted.