DAISHU-000001 · RESEARCH V2
An intact cover bearing the six-impression, imperforate Mount Rainier souvenir sheet and an Atlantic City APS convention-station cancellation dated 28 August 1934. The exact postal route, rate and first-day status remain under review.
Research updated: reverse evidence added in Version 2.
01
An intact cover bearing the six-impression, imperforate Mount Rainier souvenir sheet and an Atlantic City APS convention-station cancellation dated 28 August 1934. The exact postal route, rate and first-day status remain under review.
02
RATE
Visible franking totals 18 cents. A Smithsonian rate study documents a 1934 international surface-letter structure of 5 cents for the first ounce plus 3 cents for each additional ounce; without weight or service evidence, exact, underpaid or overpaid status cannot be selected.
ROUTE
M01 proves processing at Atlantic City. M02 probably records a New York & Chicago R.P.O. handling event. Shanghai is an observed address target, not confirmed arrival. No overseas leg is asserted.
MEANS
The R.P.O. backstamp supports sorting or handling aboard a Railway Post Office service. The exact train, direction, railway and subsequent ship or aircraft remain unresolved.
MARKS
M01 is the Atlantic City convention-station cancellation dated 28 August 1934 at 9 AM. M02 reads partly as N.Y. & CHI. … R.P.O.; route and trip characters remain candidate transcriptions. M03–M04 are faint reverse marks awaiting specialist reading.
PEOPLE
Names and identities are not published; no sender or recipient identity has been verified.
HISTORY
APS records the six-impression imperforate Mount Rainier sheet as issued on 28 August 1934 in compliment to its Atlantic City convention. This establishes issue context, not the cover's complete journey.
03
Front and reverse review shows overall age toning, handling marks, edge wear and local stains. The envelope remains intact in the supplied views. Hidden tears, repairs, contents and adhesive effects remain unverified.
04
M01 · SPECIAL_EVENT_CANCEL
Origin and convention-station cancellation
VERIFIEDView evidence →M02 · RPO
Railway-mail processing
PROBABLEView evidence →M03 · BACKSTAMP
Unresolved reverse processing mark
UNRESOLVEDView evidence →M04 · AUXILIARY
Unresolved auxiliary handling
UNRESOLVEDView evidence →05
Filled marks are verified postal events; target rings are address destinations; inferred legs are dashed; unknown legs are not connected.
Cancellation visible on the public front image; the NPS source establishes the convention context.
Destination line visible on the front; delivery is not confirmed.
The reverse carries a circular R.P.O. backstamp; the exact trip and date characters remain unresolved.
06
Supports the Mount Rainier design, six-stamp imperforate sheet and APS convention context.
Supports the catalogue candidate, issue date, format and denomination. Its asking price is not used as valuation evidence.
Supports the 28 August 1934 issue date, sheet format and Atlantic City APS convention context.
Supports the 5-cent first ounce plus 3-cent additional-ounce surface-letter rate structure in force during 1934; it does not establish this cover's weight or service.
Supports the meaning of an R.P.O. marking as railway-mail processing context; it does not identify the exact train on this cover.
07
INSUFFICIENT_EVIDENCE · No verified realised sale for an exact whole-cover comparable was found.
08
V1 · SUPERSEDED
Front-only pilot research retained as immutable history.
V2 · APPROVED
Reverse and postal-mark evidence added; downstream web and social assets rebuilt.