Webb P20 (old #P19), 1c Black Maple Leaf Issue, reply half used 1899, Arthur, Ont (WTN) to Stratford, Ont. (PTH), Cat. $20

Webb P20 (old #P19), 1c Black Maple Leaf Issue, reply half used 1899, Arthur, Ont (WTN) to Stratford, Ont. (PTH), Cat. $20. Output report from a box factory in Arthur to Thos. Ballantyne & Sons in Stratford. Interesting to see that in the 8 month period they produced 1130 boxes. Fairly thin card so printing on reverse shows through slightly on the front.