✅ SOLVED What’s this contraption?

[TWray]

I believe it reads Diamond Rubber Co. with a diamond shaped (trade) mark. It seems to work like a pump. With gas cylinder, push rod, and plunger. But I see no vent, intake, or exhaust. There may be or was a hole at the tip of the push rod, but it is boogered up. The internal workings are also shot. My google research shows the name to be a tire co. And the closest image that Ive seen to it, believe or not, is women’s breast pump. Go figure?

 

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[ScubaDetector]

Could it be a vintage bicycle tire pump?

 

[azdirtdigger]

X2 - bike pump

 

[sawmill man]

Breast pump. LOL now i had to laugh. i think scubas right it is a old tire pump, the hose would fit on the finger holder end. sorry i posted same time as him. azdirt.

 

[TWray]

Breast pump. LOL now i had to laugh. i think scubas right it is a old tire pump, the hose would fit on the finger holder end. sorry i posted same time as him. azdirt.

LOL. I know. I should have kept my thoughts to myself on that one. And thank you and AZ for the solve.

 

[WaterScoop]

Learned me something today, THANK YOU GENTLEMEN!

 

[john845]

Or a old syringe