V. On Correspondence VII

Answered within the week, they wrote for a decade

0 3 6 9 12 15 Years of correspondence 14.2 11.7 9.8 5.3 2.1 0.8 Same day 2 – 3 days Within 1 week Within 2 weeks Within 1 month Over 1 month Reply interval after receipt
Source: Transatlantic Postal Archives, 1840–1890
Penman's Ledger VII
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