Philatelic items, which were the work of H Edgar Weston, of 386 Brixton Road, London, appear on the philatelic market from time to time. 

In an article, in Gibbons Stamp Monthly (March 2003), Peter van Gelder concludes that H Edgar Weston was in fact a name used by stamp dealer Victor Marsh. He states that the address, 386 Brixton Road, was that of a stamp shop, from about 1915 till the late 1930s, owned by Victor Marsh. I have a copy 2 pages from a Victor Marsh publication from about 1914 where the address is 389 Brixton Road.

Peter van Gelder states that similar covers are also know addressed to H Edgar Weston at 13 Sion Road, Twickenham, Middlesex as late as 1956. I have items addressed to Victor Marsh at this same address as late as 1959. (see Victor Marsh  ptpo newspaper wrappers)

I have a group of 9 different covers each with a pair of printed to private order postal stationery cut-outs. A scan of the one shilling value appears above and to view all the other items click here

Cavendish Auctions Lot 1150 in Sale 620, 25 April 2002, reads
H.Edgar Weston - 'A British Georgian Stamp Banned by the Postmaster General!'. A fine copy of the 1920 edition of this scarce 8pp pamphlet, printed in British Guiana, arguing the case for the use of postal stationary cut-outs to pay postage; cover signed by Weston. The two covers originally included in the pamphlet are mounted on a separate album leaf. 
http://www.cavendish-auctions.com/sale620_ephemera_25apr02/A1080_1159.HTM

Cavendish Auctions Lot 1369 in Sale 600, 16 May 2001, reads
S.S. BRAEMAR CASTLE - THE RARE TRIANGULAR "CENSORED/H.M.H.S. 602/MASTER" CACHET; 11th Sept. 1916 env. to Edgar Weston (the noted philatelist) in London franked (as so often with Weston's WWI mail) by a pair of GB c.t.o. KEVII Postal Stat. cut-outs tied by "SOUTHAMPTON" c.d.s.'s, with a very fine strike of this unusual purple censor mark (IA133; no dates of use recorded) with initials in the middle on the front. Few known. Plus c.1916 unused PPC of the ship. (2 items).
http://www.cavendish-auctions.com/sale600_16may01/a1320_1399.html

Cavendish Auctions Lot 3097  in sale 631, 25 October 2002
"A BRITISH GEORGIAN STAMP BANNED BY THE POSTMASTER GENERAL" by H.Edgar Weston. A fine copy of this scarce eight page pamphlet printed in British Guiana, arguing the case for the use of postal stationery cut-outs to pay postage. Cover signed by Weston. The two covers originally included in the pamphlet are mounted on a separate album leaf. 
http://www.cavendish-auctions.com/sale631_25oct02/a3080_3159.html

Harmers Auction 4708, Lot 1404 
1919, large envelope Registered to H. Edgar Weston in London, franked Great Britain 1911 ½d. postal stationery cut-out (6) and with four fair strikes of the type I "TRISTAN DA CUNHA" cachet alongside, endorsed "Recd 10 OC 1919", fine
http://www.harmers.com/cat%20archive/W4708/ar470815.htm

MAGPIE POSTAL AUCTION No.91 8th MAY 2007
Lot 305. CENSORED “H Edgar Weston” cover addressed to him in London with a superb imperf block of eight x 10d blue GEO V dies affixed & tied by d/ring FIELD POST OFFICE/H13 dated 28.7.1916. each of the embossed impressions is cancelled by blue pencil crosses. At left is censors mark No.1037.

During the same period another stamp dealer, Oswald Marsh,  with a business based in Norwood SE19 was also sending out cards and covers with postal stationery cut-outs. Oswald Marsh is known to have been at Norwood from 1905 till 1939. His stamp business also including publishing.

This newspaper wrapper has been stamped with a cut-out and is postmarked at Norwood  on
1 December 1911. It would appear that it contained a philatelic publication and was sent out by Ewen's Ltd of Norwood SE.

H L'Estrange Ewen produced a booklet "The Unadhesive Postage Stamps of the the UK"  in 1905 in which he mentions Oswald Marsh. Unadhesive in this instance means postal stationery cut-outs. H L'Estrange Ewen was also involved in producing other philatelic publications.

It seems probable that this cut-out on a wrapper is the work of these two men.

Here is an example of a cutout from a newspaper wrapper used on a post card in 1905 by a Stamp Dealer,  I J Bernstein of 9 Albert Square, Manchester, in which there is a reference to "Cut out came safely to hand".