Lot 1539 P
Burdsal & Co. (1¢ black wrapper) large die proof, two-line inscription on India (100x26mm), showing trace of die sink and pencil no. "312" at bottom right, Very Fine and rare, with only a few known, ex-Joyce.Scott No. RS44P1 $600.
This label was added in the lower margin of the wrapper used by the predecessor company, The United States Proprietary Medicine Co.