Lot Essay
NOTE:
When Robert H. Pratt's book was published, this was considered to be an unique franking; at the time of the sale of his collection in 1986, a further cover to the same addressee had been discovered
est.
When Robert H. Pratt's book was published, this was considered to be an unique franking; at the time of the sale of his collection in 1986, a further cover to the same addressee had been discovered
est.