Dimensions in cm. (width x length). Items in "quotes" are those words written on tp - envelopes may have other printed information not noted in this catalogue.
HR-1) envelope - Metropol Beograd each 10cm x 13.8cm 6 sheets creamy ivory
HR-2) no envelope - "Hotel Athenee' Palace Bucuresti" (Room 616) crepe' paper tan and darkened with age 2 sheets each 11.6x 17.9
HR-3) no envelope - "Conti Hotel Cologne" - no tear serration - 10x45 (folded to 10x8)
HR-4) no envelope - "Orly Airport Paris" 3 separate sheets brown (folded in two) 10.8x17.8 There are 4 pin holes evenly spaced across near the ends and the folds, presumably created by the dispenser.
HR-5) envelope - Le Grand Hotel
31, Boulevard Anspach
Bruxelles 1
waxed paper (shiny on one side) 5 separate sheets. each 11x17.5 folded in two even serrated cut (tear?) on either end
HR-6)envelope - Grand Hotel Royal - 4 sheets - cream - small machine serrated 2 sheets are partially still connected to the other two each 10.5x 16.8 - 6 pin holes evenly across at serrated edge and near middle fold
HR-7) no envelope - "Roumanian Airlines" - another word illegible looks like it could say "capda" - tan crepe 11.3x51 (serrated 34 cm. apart)
HR-8 & HR-9 ) no envelope - "Hotel Royal Buda-Pest"
2 sets cream
first set 3 sheets folded in half- each 10.8 x 17 - 6 pin marks
second set each 10.7 x 16.8 - 2 sheets folded in half - one side shiny
HR-10) no envelope - "Hotel Athenee' Palace Bucuresti (room 102)"
pink crepe 12 x 45 no serrations- torn on either end
HR-11) no envelope - "SAS (Copen. to NY)" (?? is SAS Sweden or Scandinavian Air Service??)
4 cream sheets serrated & connected - each 11.4 x 11.5
HR-12 & HR-13) no envelope - unmarked 2 sets double ply
each set has greenish/yellow tinge one is darker than the other - they have partial serrations
first (darker) - 6 sheets still connected - each 10.5 x 14
second set - 4 sheets still connected - each 10.5 x 14
some similarities to # HR-16
HR-14) no envelope - "Wagon Lits Madrid -> Hendaya"
one sheet brown 12.2 x 19.9 thin folded in half - a crease indicates it had once been folded in quarter.
HR-15) no envelope - "from one of W.Cs on Wagon Lits Madrid - Hendaya" - apparently they were offering recycled paper. 10.7 x 16
The message printed on the one side in 3 languages

"AVISO
En este compartimento le puede ser servido, si asi lo desea, un frasquito de whisky escoces con betellin de soda.
"AVIS
Du Scotch Whisky en petit flacon et du Soda peut vous etre servi dans ce compartiment
"NOTICE
Scotch Whisky in small flask and Soda water in small bottle can be served in this compartment"
HR-16) "Restaurant in Bruges" - really nice crepe pattern though very rough - 2 sheets connected - serrated - each 10 x 15 (folded in half)
HR-17) no envelope - light blue The Atheneum Court London
Printed on the paper "Baby Soft" - 1 sheet 11.8 x 17.4
HR-18 & HR-19) no envelope - Wadi Halfa - Sudan - beige
3 pieces attached partial serration 11.5 x 11.5 (the info is hand written on this "Wadi Halfa Sudan")
6 pieces attached partial serration 11.5 x 11.5 (the info is typed on this "Wadi Halfa Sudan")
HR-20) envelope - "The New New Yorker Manhattan's First 43-Story Skyscraper GoTel" 6 sheets separated folded in half - each 11.5 x 16.5 - This paper seems very cheap for US toilet paper. If indeed it is, then I suspect he took this US paper for that very reason.
HR-21) unmarked - 3 sheets double ply attached - cream each 11.5 x 13.3
HR-22 & HR-23) unmarked by collector - 2 sheets light tan onion skin (?) type paper - one sheet is printed "Jeyes" - each 12.5 x 17.6 ( could this have been a 2 ply? - see also #HR-30
HR-24) envelope - Dom - Hotel - Koln Germany
4 sheets serrated attached pink/salmon - each 9.7 x 13.8
HR-25) no envelope - "United A.L. N.Y. to Den" - 5 sheets (folded in half) serrated attached light cream each 11.4 x 11.4