What is IT

[overbite]

It was a spool deliner.  For removing line from a reel.

Ok But Why 

It was used to dry linen line so it didn't rot. 
Yes you are right.
 Whats with the Dryer sheets

[Still Running]

Next one   No BS this is way over 150 years old My Grand Father built it.   Last one to use it was my Father 50 or so years ago, Also what made it Obsolete. So What is it and What was it used for.   Hint Most every fishermen had one. It was important thing to have.

Antique I Pad holder? 

[Bucktail]

It was a spool deliner.  For removing line from a reel.

Ok But Why 

It was used to dry linen line so it didn't rot. 
Yes you are right.
 Whats with the Dryer sheets

Just being silly.

[Dalejam]

it a holder for gloves in a hospital, mounted to a wall

[DJ76]

scrap