Neurology Psychical Research Kensington Transatlantic Mail
OVERVIEW
This offering features an original 1950 Great Britain transatlantic cover mailed from Kensington, London, to Dr. George Hall Hyslop in Jackson Heights, New York.
The primary value driver is the distinguished named addressee: Dr. Hyslop was a prominent American neurologist and was actively serving as president of the American Society for Psychical Research (ASPR) when this envelope was dispatched.
The combination of a highly documented scientific recipient, precise Kensington W.8 cancellation, and reduced-rate printed matter usage creates a specialized piece of medical, psychological, and psychical-research postal history.
FRANKING & POSTAL HISTORY
The cover is franked with a single 1d pale scarlet King George VI definitive, positively identified as Great Britain Scott 236 and Stanley Gibbons SG 486.
The stamp is securely tied by a Kensington W.8 machine cancellation consisting of a circular dater reading "KENSINGTON / 5-PM / 3 APR / 1950 / W.8" and a seven-line continuous wavy obliterator.
The 1d franking corresponds precisely to the British foreign printed-papers rate of 1d per two ounces, which was in effect from 1 May 1949 through 30 September 1950.
Because the heavy manilla envelope carries no surviving printed-matter endorsement or contents, this precise rate attribution is heavily consistent with commercial printed papers rather than absolutely proven, highlighting its specialized transatlantic usage.
CONTEXT & COLLECTOR APPEAL
George Hall Hyslop was a physician and neurologist educated at Indiana University and Cornell University Medical College, later serving as an assistant clinical professor of neurology at Columbia University.
He was also the son of James Hervey Hyslop, an influential early leader in organized American psychical research. Contemporary ASPR publications confirm Dr. George H. Hyslop presided as the society's president from 1949 to 1952.
While the unknown sender prevents attributing the contents to a specific London institution, the precise Kensington origin, reduced 1d rate, and distinguished addressee make this a highly compelling named-recipient cover for collectors of neurology, psychiatry, parapsychology, scientific correspondence, and King George VI postal history.
ITEM SPECIFICS
Country: Great Britain
Year: 1950
Type: Postal History Cover
Topic: Medical and Psychical Research
Theme: Transatlantic Academic Correspondence
Subject: ASPR President Dr George Hall Hyslop
Era: King George VI (1936-1952)
Occasion: Commercial Printed Matter Mail
Region: Kensington, London
Stamp Color: Pale Scarlet
Denomination: 1d
Currency: Pre-Decimal British (Pence)
Cover Stock/Paper Type: Heavy Manilla Envelope (Wove)
Cancellation Type/Date: Kensington W.8 Machine Cancel and CDS (3 April 1950)
Catalog Numbers: Scott 236 (SG 486)
SKU-GB-1950-KENSINGTON-HYSLOP-ASPR-1D
CONDITION
This commercial cover remains in sound historical condition.
The brown manilla envelope exhibits age-consistent toning, light surface marks, minor edge and corner wear, and normal handling evidence expected from a mid-century transatlantic surface journey.
The stamp remains intact and securely tied, with the Kensington circular dater fully readable and the wavy machine obliterator clearly struck across the adhesive.
The typed address is sharp and highly legible.
Please review all available high-resolution scans on the individual listing to verify the exact paper condition, toning, edges, stamp perforations, and cancellation clarity prior to bidding or purchase.