Belgian Cycling Museum 1890s/1900s US-made bikes - help w identification/analysis appreciated!

[BikeMuseumKoersResearcher]

Hey there, as announced on the Birds of a Feather forum, my name's Alasdair Fotheringham and I'm a cycling journalist specialising in modern-day racing, but on this occasion I need some help with background info. on three bikes recently donated to some colleagues at the Belgian National Cycling Museum. Any comments on these gratefully received.
Photos in attached files (have many more, but figured best to start with just a few). They are an 1898 (?) Dayton Flyer, a 1902 (?) Black Diamond and an 1893-95 (?) Newport. I include the model number badges from the two which have them (the Dayton and the Newport).
Thankyou!

 

[New Mexico Brant]

Lovely bicycles!

The Davis Sewing Machine Co. Dayton is a stunner! Someone here should be able to provide an exact date and original catalog image showing this bicycle.

The second looks like a Miami Racycle so I am confused why you are calling it a Black Diamond. Can you please post a picture of the badge. I ask because there was a company in Pennsylvania who offered a "Black Diamond" bicycle (and a couple other firms as well).

Thank you for posting.

 

[New Mexico Brant]

The Newport was manufactured by H.P. Snyder in Little Falls, New York; again someone here should be able to provide you a better biography of that company or specific facts you are seeking.

 

[BikeMuseumKoersResearcher]

Sorry, yes my bad. Files got mixed up (there's also a Pacemaker Racycle was donated but we have that one sorted info-wise). Here's the pic of the Black Diamond.

 

[New Mexico Brant]

Sorry, yes my bad. Files got mixed up (there's also a Pacemaker Racycle was donated but we have that one sorted info-wise). Here's the pic of the Black Diamond.View attachment 1740431

Do you have an image of the head badge, name plate for this one?

 

[BikeMuseumKoersResearcher]

There you go.

 

[New Mexico Brant]

There you go.View attachment 1740444

Not the Pennsylvania Black Diamond I was hoping for but a beauty from Buffalo!
There is a book on Buffalo, New York produced bicycles that should have all the information you need on Zahn and the Black Diamond. Possibly Patric @hoofhearted can assist you with all your questions about Davis Sewing Machine, and maybe @Archie Sturmer can assist with the Newport. @sm2501 , @Jesse McCauley

 

[C M Gerlach]

The Black Diamond is very nice, first known date of manufacture is 1897 by Henry Zahn at 613 Broadway, Buffalo, NY known to have been in operation till 1902.

 

[Jesse McCauley]

The Zahn Black Diamond was mine once, I'm surprised it was donated but I'm glad it will get the attention it deserves!

 

[Archie Sturmer]

The 1890’s H.P. Snyder Newport looks swell.

I had incorrectly thought that HPS badges, similar to those, were later.