Roman Coin Identification [opgelost]

I hope someone knows which coin this is, or which emperor. 

i think it´s an augustus coin, but which i didn´t find out in several hours.

Hi,

We would need some measurements to continue the search.

But judging from the images alone, I'm thinking on N#246985  or N#247001 .

Is there an incuse inscription on obverse ?

Sorry,

i knew i forgot something.

Diameter is 24mm

weight is 6,6g

The remaining lettering on the face side says:

VLAUDUS CAESARA AV (or AU)

could also be

VEAVIVS 

or 

VLAUIUS CAESARA AV (or AU)

or 

VLAVIVS CAESARA AV (or AU)

or

VEAVDVS CAESARA AV (or AU)

or

VLAUDUS CAESARA AV (or AU)

or

VLAVDVS CAESARA AV (or AU)

Thanks so much for your help!

best regards

Lukas

i´m pretty sure it is N# 247001

thanks so much GioBruno and also frenchlover!

But i´m still not 100% sure, the Helmet looks more similar like on the foto of N# 247001

But the thing between the legs looks more like the Dupondius N# 246985

is there any matter that you can see the breasts on my coin minerva? :-)