Pneumatic Post stationery listings:
Official Envelopes and the Letter Sheet.

'Click the Pic' to open a new window with a larger version of the picture; you may need to use the slidy-bars to see all of it; close it when done-with. The Abbreviations used in the table are listed after it.

Summary

Detail

Year	Pic	Ash	Fer	Mi RU	Sch	Stamp			Ppr col	Ins Col	Comments
						Value	Col	Des
1875		1	1	1	1	20Kr	B	Tel	W	Bk	Letter Sheet, 238x300mm
1875		2a	2a	2a	2(1)	20Kr	B	Tel	W	Bk	122x75mm. Rounded flap without inscription
1875		2b	2b	2b	2(2)	20Kr	B	Tel	W	Bk	122x75mm. Straight flap without inscription
1881		3a	3a	3a	3a(1)	20Kr	B	Tel	W	Bk	142x86mm (all following envelopes are this size). Pointed flap with PO list 'Aufgabe-Aemter ... Schönbrunnerstrasse 22'
1881		3b	3a	3b	3a(2)	20Kr	B	Tel	W	Bk	Rounded flap with PO list; 'Schönbrunnerstrasse 22'
1881		4	3b	4	3b	20Kr	B	Tel	W	Bk	Straight flap. POs listed on flap - 'Schönbrunnerstrasse 42'
1882		5	4	5	4	20Kr	B	Tel	W	Bk	Flap: 'Ämter für den pneumatische Dienst in Wien'
1883		6	5	6	5	20Kr	G	EA	W	Bk	Flap: 'Amter für den…'
1887		7	6	7	6	15Kr	G	EA	W	Bk	No information on flap.
1888		8	7	8	7	15Kr	G	EA	P	Bk	Info on flap.
1890		9	8	9	8	15Kr	R	EFL	P	Bk	Info on flap. Lower flap beneath side flaps.
1892		10	9a	10	9	15Kr	R	EFL	P	Bk	Info on front. Lower flap beneath side flaps.
1892's Official Reprints
1892	--	--	3b	4ND	3bN	20Kr	B	Tel	W	Bk	Official Reprint of Sch 3b (1881): has dot after Nr which original doesn't.
1882	--	--	4	5ND	4N	20Kr	B	Tel	W	Bk	Official Reprint of Sch 4 (1882): on back, Löwengasse is in full (original has 'Löweng.')
1892	--	--	6	7ND	6N	15Kr	G	EA	W	Bk	Official Reprint of Sch 6 (1887): after 'No' are 17 dots (original has 13)
1894 /97		11a	9b1	11I	10a	15Kr	R	EFL	P	Bk	Ash 11a: 10 or 11 dots after 'No'; lower flap over side flaps
1894 /97		11b	9b2	11II	10b	15Kr	R	EFL	P	Bk	Ash 11b: 17 dots; lower flap over side flaps
1899		12	10	12	11	15Kr	R	EFL	P	Bk	Inscription in German & Czech - for Prague
Year	Pic	Ash	Fer	Mi RU	Sch	Stamp			Ppr col	Ins Col	Comments
						Value	Col	Des
1900		13	11a	13	12	30H	R	EFL	P	Bk	For Vienna. Lower flap beneath side flaps
1900		14	12a	14	13	30H	R	EFL	P	Bk	For Prague. Lower flap beneath side flaps
1902		15	11b	15	14	30H	R	EFL	P	Bk	For Vienna. Lower flap over side flaps
1902		---	11b	16	15	30H	R	EFL	P	Bk	For Prague. Lower flap over side flaps
1904		16	13	17	16	30H	R	EFL	P	R	Absender at top left: for Vienna.
1904		17	14	18	17	30H	R	EFL	P	R	Absender at top left: for Prague.
1907		18	15	19	18	45H	O	EFL	P	---	No printed matter; for Vienna and Prague
1908		19	16	20	19	45H	Br	Jub	P	---	Ornamental border in brown
Year	Pic	Ash	Fer	Mi RU	Sch	Stamp			Ppr col	Ins Col	Comments
						Value	Col	Des

Note! Early editions of the Higgins and Gage list introduced confusion by printing for 1900 'side flaps over bottom flap' and for 1902 'bottom flap under side flaps' (surely the same!). For the Prague/Wien issue it has two listings for 1900 with both types of flap 'over' and 'under'. We have seen examples of all 4 types used from 1900 to 1904; Prague is rather rare.

Abbreviations used in tables:

"Ash" is the 1928 Ascher catalogue (APS Library 1B) which as far as pneumatic items goes is identical to the 1977 supplement (APS Lib 55). See from page 871.

"Fer" is the 2008 edition of the Ferchenbauer catalogue.

"Mi" is the Michel Ganzsachen-Katalog Europa West 2015. Prefixing the number are the letters RU for Rohrpost-Umschlage; RK for Rohrpost-Kartenbriefe; or RP for Rohrpost-Postkarten. The order of the Michel catalogue is that of the imprinted stamp design!

"Sch" is the Schneiderbauer catalogue, second edition, with the 1988 supplement incorporated (there are very few changes from the 1st edition). A table appended to this gives equivalences for obsolete issues of Ferchenbauer (1981) and the Michel Ganzsachen-Europa (1978) catalogues.

"Col" is the colour of the imprint: B=Blue; Bk=Black; Br=Brown; G=Grey; Gn=Green; GB=Green-Blue; O=Orange; P=Pink; W=White; Y=Yellow; R=Red. Combinations such as GB or GGn indicate intermediate colours and could equally well have been written BG or GnG respectively.

"Des" is the imprinted stamp designs: Tel=1873 Telegraph; EA=Eagle Arms; EFL=Emperor facing left; Jub=Emperor's 1908 Jubilee; Als=Arms (large shield); Ass=Arms (small shield); Asq=Arms (square format); EFR=Emperor facing right

"Ins Col" is the colour of the inscription (same abbreviations as for the imprint).

"Perf": 'C' is Comb; 'L' is line

Note 1: all printings with supplementary imprints & private printings have been ignored! See Schneiderbauer for their details.