Lot 363 Great Britain

Albert Hoster experimental cancellation trials: 1885 Cambridge University Press printed envelope with 1d lilac tied LONDON / EC / AP 8 / 85 Hoster cancel, 1886 1d pink P/S envelope with LONDON / X / SE 3 / E. 86 C full cancel, 1888 (date slug inverted) on 1d lilac cvr to Edinburgh tied Hoster cancel and uprated with ½d vermilion tied LONDON hooded cancel, scarce combination. (3).