Iver Johnson late 1800's-early 1900's

That is an Iver Johnson dates from late 1800's-early 1900's

_{From: https://www.henrysheldonmuseum.org/pedaling-through-history}

_{From: https://velocipedegallery.com/museum/iver-johnson-tandem-iver-johnson-arms-co-fitchburg-mass-1898}
Lots of photos here.

Clearly shows the skip-tooth gears, and the lower part of the steering chain.

Lastly - identifying the age via the head-tube badge: From https://thecabe.com/forum/threads/1897-iver-johnson-rear-steer-tandem-bicycle.97376/ Again, lots of photos here.

Ivers Johnson, late 1800's-early 1900's

Iver Johnson late 1800's-early 1900's