I DARE YOU TO FIGURE THIS ONE OUT!!!!!

[Burdie]

OK you have my dandruff up now. (joke) You will lose sleep over this one. Just try to figure this one out. Ha Ha Scale in inches.
I will show you geniuses this time. Added a rule so we could make it more fun for all.
Rule 1: Do not show a website to prove your guess.

CLUE ONE: Battles on the high seas!! The last picture is the 42 Insulator. This will be the prize.

2nd clue: The time period may be sleepless nights for the Pacific front.

 

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[SHERMANVILLE ILLINOIS]

Signal light.

 

[Getty]

Lip balm tube.

 

[stoney56]

Fish hook sharpener

 

[mojjax]

submarine detector ?

 

[Burdie]

NO WINNER YET. Third clue WED. Good luck!!! Burdie

 

[AzSports]

Russian 'Pocket Rocket'

 

[SHERMANVILLE ILLINOIS]

Shark repellent.

 

[trk5capt]

Sherm, Took My Guess, So I Will Go With Aviators Dye Marker. trk5capt...

 

[Charlene]

Humm, something off of a Mae West? beacon battery, maybe the CO2 cartriage to make it inflate.

 

[schlooppy]

A water proof container for matches or other water damagable items.

 

[BIG61AL]

A HOLDER FOR PARTIALLY SMOKED CIGAR

 

[Klaatu]

You might want to try Head & Shoulders for your dandruff problem.

Maybe you meant this got your dander up.

 

[BIG61AL]

BOESMAN WHISTLE?

 

[TheCannonballGuy]

That item's era is way out of my knowledge-area (civil-war), but I'll play the game.

Flare?

TheCannonballGuy

 

[Pennyworth]

vacuum bulb container

 

[diggummup]

I'll just guess.It's a torpedo trigger.It goes on the front of a torpedo and triggers the explosion when it comes in contact with something.

 

[Bigcypresshunter]

It appears to have a pocket clip. I wish I could see it. Is it metal, glass or plastic? Does it open? I have no guess at this time.

 

[nutso]

Snuff Box

 

[OutBack Duo]

Atropine Injection pen/device used on Naval ships