80s bright yellow jersey Tshirt with purple satin Delta( or Delts?) lettering embroidered on front and 13 at the back. 
It is nylon blend so it has a slightly glossy texture.
It has a yellow stain or discolouration on the back of the sleeve ( pic 9) and small fray under the armpit( last pic). 
fabric: 63% nylon, 37% cotton
tag size: Large (fits M-L, aus 10-12)
 
-approx measurements-
shoulder to shoulder ...41cm
armpit to armpit ...51cm
length ...66cm
sleeve ...25cm
 
++taken from seam to seam while the garment is lying flat
++please double the armpit,waist and hips