Query on SSgt insignia

[jdkoch]

Hello all, this is going to seem a strange question.

I have been cast as SSgt "Froggy" LeSueur in the play 'The Foreigner', and I need some advice on the proper insignia. Froggy is a British army demolitions expert who is visiting a US army base in Georgia to demonstrate to the young recruits how to "blow things up". The story takes place in the near past; 80's maybe early 90's.

I know from some online research that the uniform would be DPM and that the SSgt insignia is a crown over 3 down-pointing chevrons, but there appear to be a few different types of insignia and I don't know which is right for field wear, nor exactly where they should go. Should I use the sew-on kind? Slides?

Can anyone help me with this?

Thanks!