Well.....this is paper money ! I can tell you that they are consecutively numbered, which is always a plus, and they look to be in very good condition. However, I am not an expert on paper money.
1960 Fourth Series, the catalog says Face Value £1 each So x5 around $6.35 but you might get a little more as a consecutive set.
The MOD sold its remaining stock of BAFSV in the late 90s in a single lot. There were hundreds of thousands of notes from many different series. Consecutive groups are not uncommon.
