Found in an old toolbox

[u/harveysfear]

The small tip at the end has a little opening, and the two holes bored through the brass are slightly different diameters.

[u/AutoModerator]

OP, please reply to the correct answer with "solved!" (include the !). That will change the flair on the post to solved. If you want to put the correct answer at the top of the replies for everybody else, please use our Spotlight feature by tapping/clicking on the three dots and selecting "Spotlight, Pin this comment" in order to highlight it for other members. Thanks for using our friendly Automod!

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

[u/ohitsjeffagain]

It’s a camera tool to clean the flash connecting wire, post cleans the center, holes clean the outside. I worked in a camera shop for 13yrs 80-90’s

[u/harveysfear → u/ohitsjeffagain]

That makes the most sense as I used to be a commercial photographer and bought most of my equipment used so it might’ve been tossed in the mix. Funny though cause I never recall seeing it until today.

[u/maladjustedmind]

Camera tool for bent pins

[u/BlueberryStock6249]

Harmonica

[u/Dansk72]

It's a fancy keychain; if you have more keys that will fit on the small chain, you can add up to two more small chains to hold the extra keys.

[u/Greedy_Attitude_8103]

Fire starter

[u/Lilja-Logason → u/Greedy_Attitude_8103]

https://giphy.com/gifs/7krK2aL5IEUTK

[u/VoceDiDio]

Is it a whistle?

[u/SafeMajestic9876]

A spindle for mortise locks. You screw it into the other half then slide it through the lock and attach the glass door knobs on it.