Here is link to Spaulding bikes. Spaulding also sold Christy saddles so yes Spaulding definitely sold other manufacturers goods.
Also a picture of the 25th infantry and their 41 day bike trip to prove how useful bikes could be to army.
It is my understanding that an original spaulding bike would cost over 10k today.
https://bsamuseum.wordpress.com/1896...hristy-saddle/