Amateur press catalogues online
These catalogues are available in their entirety online:
https://archive.org/details/AnArchiveOfAmateurPressCatalogues
Daughaday (Model press) c. 1880
Golding & Co., 1874
Golding & Co., 1881
Kelsey, 1878
Sigwalt, 1908
More to come as I scan them and David MacMillan processes them to go online.

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Thanks for your efforts, gentlemen!
Do you boys have anything relating to the british “john Haddon Swift” ???