what piece is it?

[chispa]

Hi! They sent me this image, but I don't know what it is exactly... the stabilizing fins look like pneumatic mortars, but I have no idea... it looks like some kind of stabilizer for some aquatic instrument, but like I said, I have no idea... the two holes you see are not through holes.

 

[Alan1]

Hi! They sent me this image, but I don't know what it is exactly... the stabilizing fins look like pneumatic mortars, but I have no idea... it looks like some kind of stabilizer for some aquatic instrument, but like I said, I have no idea... the two holes you see are not through holes.

Size?
Here is the French pneumatic mortar bomb for comparison.
Alan1

 

[chispa]

Hi Alan1! I think they said about 20cm. At first, I thought about one of them, but the stabilizers are different, and the way they attach to the body also changes...

 

[MINENAZ16]

It's a nice (uncommon) French 60mm for messages (Brandt pneumatic mortar).
Top holes are for whistles.

 

[chispa]

Ok Minenaz16, thanks! How much could I pay?

 

[MINENAZ16]

Ok Minenaz16, thanks! How much could I pay?

No idea

 

[chispa]

Bueno, no puedes verlo en la foto, ¡pero solo hay 3 aletas!

 

[MINENAZ16]

Bueno, no puedes verlo en la foto, ¡pero solo hay 3 aletas!

Yes, only 3 fins for this model.
Nice one.

 

[chispa]

I asked him for some more information and he told me that it weighs 1 kg and a little more and the diameter is 8 to 9 cm (I don't know if he measured it with a caliper, ruler or by eye).

 

[MINENAZ16]

I asked him for some more information and he told me that it weighs 1 kg and a little more and the diameter is 8 to 9 cm (I don't know if he measured it with a caliper, ruler or by eye).

Official dimensions are 230mm (total length) x 59.3mm (head diameter)

 

[chispa]

Well then it's either a different model or a poorly made replica because there's quite a difference between 60 and 80/90mm...

Why is an 81 mm one too big for messages? I don't know. They actually offered it to me, but if I don't see the model clearly, I don't think I'd buy it.

 

[MINENAZ16]

Well then it's either a different model or a poorly made replica because there's quite a difference between 60 and 80/90mm...

Why is an 81 mm one too big for messages? I don't know. They actually offered it to me, but if I don't see the model clearly, I don't think I'd buy it.

Ask the saler a picture with a scale, It's a nice round, uncommon (I think original).
Look at this family of 60mm Brandt

 

[chispa]

Hi! Thanks Minenaz16 for the picture! I asked him about the measurement, and he said he measured it with an eye! Then he measured it with a tape measure (he didn't have a caliper), and he said it was approximately 6 cm. Well, when I started looking for information and saw it was pneumatic, I only saw pictures of the regular ones. I didn't see any of this one until you posted that picture!

I looked on the website, and it says it has a fuse on the stabilizing fins. I suppose it's for the smoke version? Or did the message ones also have them (to see where they fell?)

 

[MINENAZ16]

Yes, there is a fuze in tail fins to initiate smoke composition in the main body. The message is in a small cavity in the heavy head.