The No 2 etch is the large anti tank gun.
This a double etched version, the obverse can be seen on page 153, and the reverse, a dedication to Anti Tank Unit 24, can be seen on page 167.
Now, the typical Pack reverse dedication etch is very plain, typically only the reference to a unit number, unlike the much more ornate and complex dedication etches found on the other makers.
This is on a short blade and exhibits the typical Pack spanner bolts. Also, note the large Siegfried Waffen TM.